A father and his young daughter are ice skating. According to it, the daughter has greater speed.
The law of action and response is Newton’s third principle.According to Newton’s third law, when two bodies come into contact, they exert forces on one another that are equal in size and directed in the opposite direction. The law of action and reaction is another name for the third law.
This law applies to bodies in uniform or rapid motion and is crucial for addressing problems of static equilibrium, where all forces are in balance. The forces it discusses are actual phenomena, not just accounting tricks.
If there is a net force operating on a body, it moves faster in line with the second rule.
If there is no net force acting on the body, either because there are no forces at all or because all forces are precisely balanced by opposing forces, the body does not accelerate and is said to be in equilibrium.
On the other hand, it can be assumed that a body that appears to be moving slowly has no net force acting on it.
So going according to it, the daughter has greater speed.
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A clock in a spaceship is observed to run at a speed of only 3 4 that of a similar clock at rest on earth. how fast (in terms of c) is the spaceship moving?
The speed of spaceship which run at a speed of only 3 4 that of a similar clock at rest on earth is 2.4 x 10^8 m/s
As from the given data, the clock in a spaceship is observed to run at a speed of 3/5 of a similar clock that rest on the earth is
T/T° = 3/5
When time moves at a high rate of pace, it slows down. The quantity of time dilation increases as an object moves more quickly. The constant speed of light, independent of the source of the light and the viewpoint of the observer, is partially explained by time dilation.
The expression for the time dilation is given by
T = γT°
γ = T/T°
γ = 1/√1 - v^2/c^2 is time dilation
Substituting the values in the above equation as,
γ = T/T°
5/3 = 1/√1 - v^2/c^2
v^2/c^2 = 16/25
v = 0.8 c
v = 0.8 x 3 x 10^8 m/s
v = 2.4 x 10^8 m/s
Hence, speed of spaceship moving is
2.4 x 10^8 m/s
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use the diagram to answer the following physics questions:
i. where is the velocity zero?
ii. where is the velocity positive?
iii. where is the velocity negative?
iv. where is the fastest velocity?
v. where is the acceleration positive?
vi. where is the acceleration negative?
vii. where is the acceleration zero?
(if you could explain that would be great! thank you so much :) )
Answer:
i. Point A
ii. None
iii. All points
iv. F
v. None
vi. All
vii. None
Explanation:
i. Not quite sure if I'm interpreting the diagram right, but from the second the ball is released, it will start accelerating. Point A is where the velocity will be closest to 0 but not necessarily 0 as it will have started accelerating downwards.
ii. Assuming standard directions for vectors, the velocity is positive at none of the points as the ball is travelling in a downwards direction.
iii. Since the ball is always travelling downwards, its direction and therefore velocity is a negative number at all points in this diagram.
iv. The ball is accelerating as it falls so the further or the longer it falls, the faster its velocity, therefore in this diagram, it is fastest at point F.
v and vi. Assuming same direction principles as ii and iii (as acceleration and velocity are both vectors), acceleration is always downwards, therefore it is positive at no points, and negative at all of them.
vii. Acceleration due to gravity is always constant, so unless the ball is not moving (being held by the boy), acceleration is not 0 at any of the points.
Hope this helped!
An earth satellite has a speed of 7.5 km/s and a flight path angle of 10 degrees when its radius is 8000 km. what is the angular momentum (in km 2/s)?
An earth satellite has a speed of 7.5 km/s and a flight path angle of 10 degrees when its radius is 8000 km.
-21.7km square /s square is the angular momentum (in km 2/s).
what is a satellite?The term "satellite" or "artificial satellite" refers to an object that has been placed into orbit in space on purpose. Except for passive satellites, most spacecraft have a way of generating power for the technology they carry, such as solar panels or radioisotope thermoelectric generators (RTGs). Most satellites also have transponders, which are a type of ground station communication system. The most typical satellites, tiny CubeSats, use a standardi Due to the expensive cost of space launch, satellites are designed to be as light and durable as possible. Satellites of the same type can work together to form constellations.To learn more about the artificial satellite, refer to the following link:
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Chapter 1102 of the ______ governs the practice of texas real estate inspectors.
Chapter 1102 of the Texas Occupations Code governs the practice of Texas real estate inspectors.
What are the titles included in the texas Occupations Code?All legislation and regulations passed by the state legislature are included in the Texas Education Code. It applies to the majority of educational institutions that receive all or a portion of their funding from state taxes. The Texas Constitution and all state statutes are both searchable indexes.
1 General Requirements
2 General Licensing Provisions
3 Health Professions
4 Animal-Related Professions
5 Financial and legal services regulation
6 Control of Practices in Engineering, Architecture, Land Surveying, and Related Fields
7 Real Estate and Housing-Related Practices and Professions
8 Environmental and industrial trades regulation
9 Regulation of Cosmetologists, Barbers, and Related Professions
10 Jobs in Security and Law Enforcement
11 Jobs in Sales and Solicitation Regulation
12 Water, Health, and Safety-Related Practices and Trades
13 Sports, recreation, and entertainment
14 Motor Vehicle and Transportation Regulation
15 Employment-Related Professions
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Assume the following beam cross section experiences a vertical shear force. what is the value of t (in = vq/it) for determining the largest horizontal shear stress?
2 in is the value of t (in τ = VQ/It) for determining the maximum horizontal shear stress.
Horizontal shearThe neutral axis of the beam is (typically) where the horizontal shear stress is at its highest. This contrasts with the behavior of the bending stress, which is zero at the neutral axis and highest at the other edge of the beam. Horizontal shear stress, for instance.How is horizontal shear discovered?Txy = Tyx causes the beam's horizontal shear force, which tends to cause the fibers to slide.
How is shear stress determined?Recall the equation = VQ/It, which is used to determine shear stresses caused by bending. The internal shear force, V, was just taken directly from the shear diagram.learn more about horizontal shear stress here
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Magnetic field strength decreases as you get farther from the poles of the magnet. does the flux through the face of the coil change as you move the magnet? explain your answer.
Magnetic field strength decreases as you get farther from the poles of the magnet.
ExplanationThere are three ways to change the magnetic flux across a loop: Change the strength of the magnetic field across the surface (raise, reduce).
It doesn’t matter whether you move the coil while keeping the magnet fixed or the other way around if you want to change the surface area of the loop (raise by expanding the loop, decrease by reducing the loop).
The way they move in respect to one another determines how the magnetic flux across the coil changes. The direction in which the galvanometer needle deflects depends on which side of the coil confronts the magnet when you move it. The coil ends are labelled to show which goes to the red wire and which goes to the black wire.
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What wwould be abeeter material to use to make a frying pan - aluminiium or iron? why are iron pans not usully used by people who backpack?
Iron would be a better material to use to make a frying pan because, it is durable and great for baking or frying.
Iron pans are not used by people who use backpack or while travelling, because they are rather heavy and demand appropriate care.
Iron is the better material to use to make a frying pan.If a flat-bottomed pan is used for frying, searing, or browning food, it is referred to as a frying pan, frypan, or skillet.
It usually has a diameter between 20 and 30 cm (8 and 12 in), a long handle, fairly low sides that flare outward, and no cover.
On larger pans, a little grab handle may be found directly across from the main handle. Similar in size, but with less noticeable, more vertical sides, and frequently with a lid, is a sauté pan.
Even though it can be used as a frying pan, a sauté pan is designed for cooking at lower temperatures.
Fry pans were typically fashioned of cast iron, carbon steel, or copper with a tin coating due to their unique characteristics and properties.
Copper pans are ideal for evenly sautéing due to their excellent thermal conductivity. However, many copper pans are now offered with changeable tin linings because they are also quite reactive with most foods.
Even though they don’t transmit heat very uniformly, cast iron pans are used because they are effective for searing meats and vegetables.
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What strategies are likely to be most effective in teaching a young child to throw a ball?
The best strategy for teaching a toddler or pre-schooler to throw is to simply play lots of throwing games with them without providing instruction. This will enable children to learn the fundamentals of throwing as their muscle coordination gradually improves over time.
What do you mean by throwing?Throw me a ball is an expression used to launch a ball through the air To abruptly place in a particular state or situation Please don't throw rubbish on the ground. He was thrown in jail to cause to tumble .The horse hurled its rider to put on or take off in a fast Let me throw on a coat.
Which three forms of throwing are there?Overhand, underhand, and throws made with both hands are among the different kinds. Underhand throws are typically made below the shoulder, whereas overhand throws are typically made above.
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Based on einstein's theory of gravity, if the sun and its mass were suddenly to disappear, earth would:________
Based on Einstein's theory of gravity, if the sun and its mass were to suddenly disappear, earth would stay in its current orbit for a few minutes before taking off into space.
What would occur to our world if the sun were to suddenly vanish?
The Earth would be drawn to a new center of gravity if the sun disappeared. Earth's gravity would change, as would that of the rest of the solar system, and Earth would begin to drift into space since there would no longer be a steady source of energy from the sun. It is a foolish dream to think that life could exist without the sun forever. Humans could be able to survive for a while in some sort of base, such as a nuclear-powered dome.
The good news is that there wouldn't be many living things for the radioactive waste to endanger; however, there also probably wouldn't be any liquid water to cool the power system. All photosynthetic species, including plants and algae, would die if just the sun's light persisted.
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Which depiction of changing chemical compounds best describes the flow of nitrogen from the atmosphere, through the nitrogen cycle, and back into the atmosphere?
The depiction of changing chemical compounds that best describes the flow of nitrogen from the atmosphere, through the nitrogen cycle, and back into the atmosphere is N2 → NH4+ → NO3- → N2
Ammonification: The formation of ammonia or its compounds from nitrogenous compounds, especially as a result of bacterial decomposition. It is given by this equation: N2 → NH4+
Nitrification: The biological oxidation of ammonia with oxygen into nitrite followed by the oxidation of these nitrites into nitrates. It is given by this equation: NH4+ → NO3-
De-nitrification: A microbially facilitated process of nitrate reduction that may ultimately produce molecular nitrogen (N2) through a series of intermediate gaseous nitrogen oxide products.
NO3- → N2
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An fm radio station broadcasts an oscillating radio wave at a frequency of 100 mhz. what is the period of the oscillation?
A shorter period implies a higher frequency because the relationship between the period and frequency is inverse.
T= 1/f = 1 / 1×10⁸s = 10ns
What is frequency?An event's repetitions per unit of time are what determine its frequency. It is also referred to as ordinary frequency in comparison to angular frequency and sometimes as temporal frequency in contrast to spatial frequency. Period, the inverse of frequency, is the duration of time required for one cycle of a repeating event. For instance, a heart that beats at a rate of 120 beats per minute (2 hertz) has a period (T) of 0.5 seconds between each beat (60 seconds divided by 120 beats).
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A ground state hydrogen atom absorbs a photon of light having a wavelength of 92.27 nm. it then gives off a photon having a wavelength of 383.4 nm. what is the final state of the hydrogen atom?
Absorption or emission lines for hydrogen occur when electrons change energy levels. These correspond to specific wavelengths and can be calculated by using:
1/λ = RH (1/n^2f - 1/n^2)
RH = 1.09737×10^7m^−1 is the Rydberg constant
For the 92.97 absorption, initial=1, solve for final
1/92.92×10^-9=R(1/1^2 - 1/final^2)
(1/92.97×10^-9)*(1/1.096775×10^7)=1/1^2 - 1/final^2
final=8
When 384.3 wavelength is released n=8 will be initial level. Solve for final level.
-1/383.4×10^-9=R(1/8^2 - 1/final^2)
(-1/383.4×10^-9)*(1/1.096775×10^7)=1/8^2 - 1/final^2
final = 2
When n = 2 the electron will land at that level.
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Do you recommend the use of nuclear power as a main source of energy? explain your answer (PLEASE HELP WILL MARK BRAINLIEST!!)
Yes because;
i.Nuclear energy protects air quality
✓Nuclear is a zero-emission clean energy source.
It generates power through fission, which is the process of splitting uranium atoms to produce energy. The heat released by fission is used to create steam that spins a turbine to generate electricity without the harmful byproducts emitted by fossil fuels.
ii.Nuclear energy produces minimal waste
iii.Nuclear energy’s land footprint is small
✓Despite producing massive amounts of carbon-free power, nuclear energy produces more electricity on less land than any other clean-air source.
What voltage must be applied to an 8.00 nf capacitor to store 0.160 mc of charge?
The voltage that must be applied is 20 KV
Given that,
Capacitance C = 8 nF = 8 * [tex]10^{-9}[/tex] F
Charge Q = 0.16 mC = 0.16 * [tex]10^{-3}[/tex] C
We know that C = Q / V
V = 0.16 * [tex]10^{-3}[/tex] / 8 * [tex]10^{-9}[/tex] = 20 * [tex]10^{3}[/tex] V = 20 KV
Voltage is nothing but an electromotive force.
Therefore, the voltage that must be applied is 20 KV
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A wireless nic performs the same functions as a wired nic except that ____________.
A wireless NIC performs the same functions as a wired NIC except that an antenna or sensor is used instead of wired connection.
NIC in known as network interface. Traditionally NIC is done using wiring from source to receiver. As technology advanced we started using wireless NIC.
In an wireless NIC, antennas or sensors will be present to receive and send signals. The signals are send and received as electromagnetic waves also called as EM waves.
Therefore, a wireless NIC performs the same functions as a wired NIC except that an antenna is used instead of wired connection.
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what fives the identity of an atoms and its place on the periodic table
Answer:
atomic number
Explanation:
In the modern periodic table, the elements are listed in order of increasing atomic number. The atomic number is the number of protons in the nucleus of an atom. The number of protons define the identity of an element (i.e., an element with 6 protons is a carbon atom, no matter how many neutrons may be present).
*in the question you have written fives i think it has to be gives .*
please make my answer as brainelist
A copper block weighing 2 kg is dropped from a height of 20m. what is the rise in the temperature of the copper block after it hits the floor. the specific heat capacity of copper is 400 j/(kgc )
The rise in temperature of the copper block after hitting the floor is 0.49°c
What is specific heat capacity?The quantity of heat energy needed to raise a substance's temperature per unit of mass is known as specific heat capacity. A material's specific heat capacity is a physical characteristic. Since its value is inversely correlated with the size of the system under study, it is also an illustration of an extended feature.
What is law of conservation of energy?Energy can only be transformed from one form to another. It cannot be created or destroyed.
How will this question be solved?From the law of conservation of energy we know,
The potential energy of the block= cmΔT
mgh= cmΔT
m×9.8×20= 400×m×ΔT
196=400ΔT
ΔT=0.49°C
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At the summer solstice in the northern hemisphere, the sun:____.
The complete statement is → At the summer solstice in the northern hemisphere, the sun travels longest path through the sky.
We have a statement regarding summer solstice in northern hemisphere.
We have to complete the statement using appropriate words.
What is Summer Solstice?A Solstice that marks the onset of summer. To be more precise, 21st June in northern hemisphere marks the summer solstice and 22nd December in southern hemisphere marks the Summer solstice.
According to the question, we have -
At the summer solstice in the northern hemisphere, the sun ____.
The given sentence can be completed as →
At the summer solstice in the northern hemisphere, the sun travels longest path through the sky.
On this day, there is more daylight. During the summer solstice in northern hemisphere, the north pole is shifted 23.4° toward the Sun which lasts until the autumnal equinox (September 22 or 23) where it ends.
Hence, the complete statement is → At the summer solstice in the northern hemisphere, the sun travels longest path through the sky.
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A ball is thrown upward with a velocity of 19.6. what us its veloicty after 3 sec
Initial velocity exists at 19.6 m per second. Plus acceleration exists equivalent to expression due to gravity, but it exists downward, so it will be negative -9.8 m per second squared and time exists three seconds, so this exists equivalent to this gives us - 9.8 meter per second velocity after 3 seconds.
How to find the initial velocity?The acceleration of the ball will be a constant [tex]$9.8 \frac{\mathrm{m}}{\mathrm{s}^2}$[/tex] (downward), regardless of whether the ball exists traveling upward or downward.
The equation that makes this calculation simplest is
[tex]$$V_f=V_i-g(\Delta t)$$[/tex]
where the negative sign has been used to account for the opposite directions of [tex]$V_i$[/tex] and g. After 3 seconds,
[tex]$V_f=19.6-(9.8)(3)=19.6-29.4=-9.8 \frac{m}{s}$$[/tex]
The negative result tells us that the ball is on its way downward by this time (consistent with our choice of a negative value for the downward acceleration of gravity).
Initial velocity exists at 19.6 m per second. Plus acceleration exists equivalent to expression due to gravity, but it exists downward, so it will be negative -9.8 m per second squared and time exists three seconds, so this exists equivalent to this gives us - 9.8 meter per second velocity after 3 seconds.
The complete question is:
A ball is thrown upward at a velocity of 19.6 m/s. What is its velocity after 3.0 s, assuming negligible air resistance?
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If a basketball player jumps and lands on the ground after 3.2 seconds with a final velocity of −5.5 m/s, what is the player’s initial velocity? Assume (a=−9.8 m/s2)
Show some work
The initial velocity of the player, given it landed on the ground after 3.2 s is 15.68 m/s
How to determine the timeWe'll beging by obataining the time taken for the player to reach the maximum height. This can be obtannnned as follow:
Time for the entire trip (T) = 3.2 sTime to reach maximum height (t) = ?T = 2t
3.2 = 2t
Divide both sides by 2
t = 3.2 / 2
t = 1.6 s
How to determine the initial velocity of the playerThe initial velocity of the player can be obtained as follow:
Time to reach maximum height (t) = 1.6 sAcceleration due to gravity (g) = -9.8 m/s²Final velocity (v) = 0 (at maximum height)Initial velocity (u) = ?v = u + gt
0 = u + (-9.8 × 1.6)
0 = u - 15.68
Collect like terms
u = 0 + 15.68
u = 15.68 m/s
Thus, we can conclude that the initial velocity of the player is 15.68 m/s
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A record is declared as follows: the first letter in the first name is stored in location 1000. each letter takes one location and an integer takes two locations. what is the address of last[2]?
1012, a record is declared as follows: the first letter in the first name is stored in location 1000. Each letter takes one location and an integer takes two locations.
Multiplication and Division of Integers: the merchandise of a positive integer and a negative integer is negative: the merchandise of two positive integers is positive. The product of two negative integers is positive.
They are important because they assist to facilitate certain calculations by including integer negative numbers. In addition, they also include all negative and positive numbers without a percentage point.
The whole numbers are real numbers that don't have fractions, decimals, and negative numbers. It's neither positive integer nor negative. Zero obeys the rule of whole numbers. Positive numbers are greater than 0 and located to the proper of 0 on the variety line.
Negative numbers are but 0 and located to the left of 0 on the variety line. The quantity zero is neither positive nor negative. Zero is neither positive nor negative. It's the sole number with such characteristics.
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The stars rise about 4 minutes earlier each night. if the star betelgeuse, of the constellation orion, rises tonight at 1:12 am, you would expect it to rise 22 days from now at the time of?
22 days from now the star Betelgeuse, of the constellation Orion will rise at 11:40 pm
Given that,
Time at which the star rises today = 1:12 am
The stars rise about 4 minutes earlier each night
Minutes earlier it will rise 22 days from now = 4 * 22 = 88 minutes
= 1 Hr 28 Min
The star should rise 1 Hr 28 Min earlier from 1:12 am which is 11:44 pm
But since the time from today to 22 days from now crosses the 12 am mark, the star will be seen twice on the same day. This means that the star seen on 11:44 pm is actually on the 21st day. On 22nd day the star is seen 4 minutes earlier than 11 pm which is 11:40 pm.
We rotate one degree every 4 minutes. We revolve a little more than 1 degree every day around the sun (365 days divided by 360 degrees is 1.014 degrees). So everyday we get to see the star 4 minutes early which is 1 degree.
Therefore, 22 days from now the star Betelgeuse, of the constellation Orion will rise at 11:40 pm
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Mars is roughly 60 million km from earth. How long does it take for a radio signal originating from earth to reach mars? radio signals travel at the speed of light
Answer:
200 seconds
Explanation:
60 000 000 000 m / 3 x 10^8 m/s
6 x 10 ^10 / 3 x 10^8 s
2 x 10^2 s = 200 seconds
Where can an emt get key information about a hazardous materials incident such as a traffic accident with a tanker truck?
Contacting the tractor-trailer truck's driver who was operating it when the accident occurred.
What is the route to a hazardous materials scene?When responding to any incident, first responders must be on the lookout for dangerous chemicals. The dispatcher may give details like odd indications and symptoms (such a strong stench or itchy eyes) or the address may hint that the call may entail a chemical release. When unpleasant odors, gasoline, or corrosive liquid spills are present, it may be easy to see that hazardous items are present. When dealing with odorless yet toxic and/or combustible vapors and liquids, radioactive materials, or other circumstances, the dangerous character of the chemical(s) may not always be obvious. It is safe to presume that the cargo is dangerous if a vehicle has a diamond-shaped placard or an orange-numbered panel on the side or back.
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If two angles of a triangle have radian measures 9 and 3 8 , find the radian measure of the third angle.
The third angle of the triangle should be 37π/72 rad.
We need to know about the triangle rule to solve this problem. One of the rules of the triangle is the total angle inside the triangle is 180⁰.
A + B + C = 180⁰
From the question above, the given parameter is
A = π/9 rad
B = 3π/8 rad
Convert the angle to radian
180⁰ = π
Hence, the total angle should be
A + B + C = π
π/9 + 3π/8 + C = π
C = π - (π/9 + 3π/8)
C = π - 35π/72
C = 37π/72 rad
Hence, the third angle of the triangle should be 37π/72 rad
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The imidazole side chain of histidine has a pka of 6.04. illustrate the predominant structures for histidine at (i) ph 4, (ii) ph 8, and (iii) ph 12. indicate stereochemistry at the ca.
The histidine imidazole side chain has a pka of 6.04. To illustrate the predominant structures for histidine at (i) ph 4, (ii) ph 8, and (iii) ph 12, we have the pictures attached below. The first one indicates structure at ph 4, second one indicates ph 8 and third indicates ph 12.
What is stereochemistry?The study of stereochemistry is focused on stereoisomers, which by definition have the same molecular formula and sequence of bonded atoms (constitution) but differ in the three-dimensional orientations of their atoms in space.
Stereochemistry is a subfield of chemistry that deals with the relative spatial arrangement of atoms that form the structure of molecules and their manipulation. Because the prefix “stereo- “denotes “three-dimensionality,” it is also referred to as “3D chemistry.”
One crucial area of stereochemistry is the study of chiral molecules. Stereochemistry covers the entire range of organic, inorganic, biological, physical, and particularly supramolecular chemistry.
The study of stereochemistry involves techniques for identifying and describing these interactions, as well as the impact these relationships have on the physical or biological characteristics of the molecules in question.
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Roughly how long would it take a fast moving craft that was initially propelled by rockets to reach the nearest star to the sun?
In other words, it would take Deep Space 1 more than 81,000 years to travel the 4.24 light-years between Earth and Proxima Centauri at its top speed of 56,000 km/h.
How long would it take to get to the nearest star at the speed of light?At this speed, Voyager would take more than 73,000 years to reach Proxima Centauri. It would still take 4.22 years to get there even if we could move at the speed of light, which is not possible because of Special Relativity.
At perihelion, Helios 2 was able to reach a maximum velocity of approximately 240,000 km/h (150,000 miles/hour), which was attained by the Sun's gravitational attraction alone due to the significant eccentricity (0.54) of the probe's solar orbit (190-days). Even though, technically speaking, Helios 2's perihelion velocity was not a gravitational slingshot but rather a maximum orbital velocity, it continues to maintain the title of fastest man-made object.
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A body with an initial velocity of 8 m/s moves along a straight line with constant acceleration and travels 640m in 40 seconds. For the 40s interval, find the (a) final velocity and (b) acceleration.
Answer:
See below
Explanation:
df = do + vo t + 1/2 at^2
640 = 0 + 8 (40) + 1/2 ( a)(40^2) shows a = .4 m/s^2
vf = vo + at
= 8 + .4 (40) = 24 m/s
Define what is meant by a "frame of reference" in physics. as we study motion, what will we normally use as our reference frame? give an example of motion being described using this reference frame. under what conditions would we use a different reference frame to describe motion? give two examples of using a different reference frame to describe motion, explaining why this different reference frame is used.
A frame of reference is just a set of coordinates that are used in the study of physics to calculate things like position and velocity. Axes that specify the three dimensions of space within the frame of reference are often included in such a frame.
What is the example of a motion being defined using this FOR?A railway platform is an illustration of an inertial frame of reference. The platform doesn't move, hence it satisfies the requirement for not accelerating. The platform's objects move according to the law of inertia.
Under what conditions do we use a different FOR?An acceleration with respect to an inertial frame characterizes a non-inertial reference frame. In general, an accelerometer at rest in a non-inertial frame will pick up a non-zero acceleration. While all inertial frames share the same laws of motion, non-inertial frames have different laws of motion depending on the acceleration. For example, let's imagine you are driving through a stop signal in an automobile. The automobile has stopped moving. The automobile accelerates when the light turns green. The car is not an inertial frame of reference when it is accelerating. You will feel yourself "pushed" into the seat if the acceleration is significant enough.
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B. lactic acid is produced and builds up in muscles during intense exercise and causes painful, sore muscles. what is the ph of 0.6 mm lactic acid, pka = 3.86?
When there is a high energy demand, frequent variations in the energy demand, and a deficiency in oxygen, lactic acid is created and builds up in the muscle.
Muscle pH drops to between 6.4 and 6.6 during prolonged, severe exercise. The high H+ ion concentration does not seem to be the main factor limiting force creation; instead, the PCr level appears to be more important. High H+ concentrations can inhibit phosphofructokinase, although the inhibition can be effectively overcome by increases in the activators AMP and ADP. High H+ concentrations reduce PCr by directly affecting the equilibrium of creatine kinase and indirectly by raising ADP.
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