A solar eclipse when the moon is at its far end of orbit, leaving a ring of light around the black circle of the moon is called a ring of fire.
When the moon passes in front of the sun and casts a shadow on Earth, there is a solar eclipse. Only during the new moon phase, when the moon travels squarely between the sun and Earth and casts shadows on its surface, can a solar eclipse occur.
The North and South Poles are unable to view total solar eclipses. Solar eclipses that are nearly identical occur every 18 years and 11 months. There can be two to five solar eclipses per year, depending on the Sun, Moon, and Earth's geometry. One to two years can pass between complete solar eclipses.
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A projectile is travelling at 1,429 ft/s. what is the speed of this projectile in km/h?
Answer:
1568 km/hr
Explanation:
First convert from ft/s to km/s
Do this by using a conversion rate.
3280 ft/km
(1429 ft/s)/(3280 ft/km) = 0.4355 km/s
Then convert from km/s to km/hr
Conversion rate 3600 s/hr
(0.4355 km/s)(3600 s/hr) = 1568 km/hr
Sketch the vectors v1, v2, v3, v4 with tail p and head q, and com- pute their lengths. are any two of these vectors equivalent?
Two or more vectors are equivalent if they have same magnitude and direction.
Vectors are formed by joining tail with head and forming an arrow in the direction of head.
Lets find each of these vectors.
(i) v1= (position vector of Q)-(position vector of P)
= (4i+4j)-(2i+4j)= 4i+4j-2i-4j=2i
v1= 2i
if a vector V= xi+yj
then the length of vi =2i
length of v1=2
(ii )v2= (position vector of Q)-(position vector of P)
(i=3j)-(-i+3j)= i+3j+i-3j=2i
v2= 2i
length of v2= 2
(iii) v3= (2i+4j)-(-i+3j)= 2i+4j+i-3j
v3= 3i+j
length of v3= [tex]\sqrt{10}[/tex]
(iv) v4= (6i+3j)-(4i+j)= 6i+3j-4i-j
Length of v4= [tex]\sqrt{8}[/tex]
Two vectors are equivalent if they have same magnitude and direction.
Clearly vectors V1 and V2 have same magnitude and they have same direction as represented of their sketch.
Hence vectors V1 and V2 are equivalent.
How would you define magnitude?Magnitude is a term used to describe size or distance. We can relate the magnitude of the movement to the size and movement speed of the object. The magnitude of a thing or an amount is its size.
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An elevator is being lifted up an elevator shaft at a constant speed by a steel cable. all frictional effects are negligible. in this situation, forces on the elevator are such that:_____.
A steel cable is moving an elevator up an elevator shaft at a consistent speed. The consequences of friction are all insignificant. In this case, the forces acting on the elevator are such that the cable's upward force is equal to the force of gravity pulling downward.
Second Law of Motion of Newton:Often referred to as Newton's Second Law of Motion, the Law of Force and Acceleration asserts that an object accelerates when it is subjected to a force using the formula net force = mass x acceleration (F = ma). Thus, the acceleration of the item is directly proportional to its force and inversely proportional to its mass. A body's momentum is determined by its mass and velocity together. Momentum is a vector quantity, just like velocity, having both a magnitude and a direction. The amount, direction, or both of the momentum can vary when a force is applied to a body.Learn more about the Newton 2nd law with the help of the given link:
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How would you connect multiple batteries in order to get the biggest possible voltage?
We connect multiple batteries in series in order to get the biggest possible voltage.
Series connection
A circuit is set to be connected in series when there is same flow current through all the component in the circuit.
There is only one path for current to flow.
Parallel connection
A circuit is said to be connected in parallel when all the components are connected across each other's lead.
If we connect two batteries in series then the two batteries add up their voltage. And we have the combined voltage. (as shown in image)
series means connecting one anode to the another cathode of next.
similarly if batteries placed in parallel then the voltage in circuit is same as of individual battery.
We connect multiple batteries in series in order to get the biggest possible voltage.
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You treat 9.540 g of the mixture with the acid and isolate 9.355 g of nacl. what is the weight percent of each substance in the mixture?
The weight percentage of sodium carbonate in the mixture is = 67.71%
The weight percentage of sodium bicarbonate in the mixture is = 32.57%
What does "molar mass" ?The total mass throughout grams of all the atoms needed to form a molecule per mole is what makes up the molar mass, also known as the molecular weight. Grams per mole is the unit measuring molar mass.
According to the given information:The interaction between sodium carbonate and hydrochloric acid has the following equation:
Na₂CO₃ + HCl --> NaCl + CO₂ + H₂O
The reaction's balanced equation is,
Na₂CO₃ + 2HCl --> 2NaCl + CO₂ + H₂O -------(2).
When sodium hydrogen carbonate as well as hydrochloric acid react, the following equation results.
NaCO₃ + HCl --> NaCl + CO₂ + H₂O ----------------(3)
The Molar mass :
Na₂CO₃ = 106g/mol
NaCO₃ = 84g/mol
NaCl = 58.5g/mol
The mass of the mixture is Na₂CO₃/NaCO₃ = 9.540g
The molar masses of the constituent elements that make up the compounds are added to determine the molar weight of the substances. In both chemical equations (2) and (3), the unitary technique is employed to calculate the mass of the mixture based on the number of moles (3).
The mass of the sodium carbonate and sodium bicarbonate is calculated with the help of the mass of NaCl formed by the mixture of Na₂CO₃/NaCO₃ with HCl.
The mixture has the following percentage of sodium carbonate:
% of Na₂CO₃ = [tex]\frac{x \times 106}{9.540} \times 100\\[/tex]
[tex]=\frac{0.061 \times 106}{9.540} \times 100[/tex]
= (6.46/9.540)*100
= 67.71%
The weight percentage of sodium carbonate in the mixture is = 67.71%
The mixture has the following percentage of NaHCO3:
% of NaHCO₃ = [tex]\frac{y \times 84}{9.540} \times 100[/tex]
= [tex]=\frac{0.037 \times 84}{9.540} \times 100[/tex]
= (3.108/9.540)*100
= 32.57%
The weight percentage of sodium bicarbonate in the mixture is = 32.57%
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I understand that the question you are looking for is:
A mixture of sodium carbonate and sodium hydrogen carbonate is treated with aqueous hydrochloric acid. the unbalanced equations for the resulting's reactions are:
Na2CO3 (s) + HCl (aq) --> NaCl (aq) + CO2(g) + H2O (l)
NaHCO3(s) + HCl (aq) --> NaCl (aq) + CO2(g) + H2O (l)
You treat 9.540g of Na2CO3/NaHCO3 mixture with an excess of aqueous HCl and isolate 9.355g of NaCl. What is the weight percent of each substance in the mixture?
Consider a situation where you exert a force f on a crate of mass m, moving it at a speed v a distance d across a floor in a time interval t. the quantity 1/2 mv2 is:______
The quality (1/2) mv² will be the kinetic energy of the crate .
The kinetic energy of an object is define as , it is a form of energy that an object or a particle has by reason of its motion.
We are know that,
Force exerted on the crate = f
Mass of the crate = m
Speed of motion of the crate =v
Distance traveled by the crate across the floor = d
Time interval passed = t
The motion can be defined as , the change in position of an object with respect to its surroundings in a given interval of time.
Kinetic energy is directly proportional to the mass of the object and to the square of its velocity. If the exert a force f on a crate of mass m, moving it at a speed v a distance d across a floor in a time interval t.
K.E. = 1/2 m v²
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In the worst case, a linear search locates a value in an array of length n in ____ steps.
In the worst case, a linear search locates a value in an array of length n in O(N) steps.
Briefing :The best case scenario for a linear search on a list of n items is when the goal value is equal to the very first item on the list. In these circumstances, just one comparison is required. The best case performance is therefore O(1). A linear search in linear time can perform a maximum of n comparisons, where n is the length of the list. As a result, O represents the computing complexity of linear search (N). When the search item occurs at the top of the list and is O(1), the Linear Search algorithm performs at its best. The worst-case scenario is when the search result does not appear at all or appears at the bottom of the list. The worst case scenario is O(N) because this would require N comparisons.Learn more about the Linear search algorithm with the help of the given link:
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A. assuming a perpetual inventory system and using the weighted average method, determine the weighted average unit cost after the october 22 purchase. round your answer to two decimal places.
Assuming a perpetual inventory system and using the weighted average method, the weighted average unit is determined as $11.44 after the October 22 purchase.
What is Weighted Average Cost (WAC)?The Weighted Average Cost (WAC) method of inventory valuation in accounting uses a weighted average to establish the COGS and inventory levels.
The price of the products up for grabs is divided by the quantity of them in the weighted average cost technique.
The WAC technique is appropriate under both GAAP and IFRS accounting. Weighted Average Cost (WAC) Method Formula
Weighted Average CostWeighted Average Unit Costs = [360 units×$12 + (320-180) ×$10] / [360+(320-180)]units}
Weighted Average Unit Costs = $5720 / 500 units
Weighted Average Unit Costs = $11.44
Costs of goods that are offered for sale are calculated using beginning inventory value plus acquisitions.
Units available for sale are the number of units that can be sold by a company or the total number of units that are in its inventory.
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How long will it take a car to go from a complete stop to 44 km/hr if they are accelerating
at 5m/s²?
Answer:
Time taken = 2.444sec
Explanation:
Greetings !
Given values :-
Final velocity (Vf) =44km/hr =12.22m/s Initial velocity (Vi) = 0m/sAcceleration (a)= 5m/s²Required values:-
Time taken (t) =?Solution/ work-out:-
Firstly change the km/hr value to m/s
Then, recall the Velocity-Time Equation:
[tex]vf = vi \: + at[/tex]
substitute known variables into the equation
[tex](12.22) = (0) + (5)t[/tex]
Solve for time
[tex]t = 2.444sec[/tex]
Hope it helps!!
A tie fighter is traveling around naboo with a velocity of 607 m/s. the tie fighter slows down at a rate of -7.5m/s^2 for 14.6 s. how far did the tie fighter travel while slowing?
The Total Distance covered by the train while slowing down is 8062.85 meters.
In the given situation,
We can find the distance covered by the tie fighter from the formula :
=> [tex]S = ut + \frac{1}{2}at^{2}[/tex]
Here S = Distance, u = Initial Velocity, t = Time taken, a = Acceleration
It is given that, u = 607m/s, t = 14.6s, a = -7.5 m/s^2
The negative Acceleration means it is a case of Slowing down.
Putting values into the equation,
=> S = (607)*(14.6) + (1/2)*(-7.5)*(14.6)^2
=> S = 8862.2 + (-799.35)
=> S = 8062.85
The total distance traveled while slowing is: 8062.85m
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What are the slope and the y-intercept of the linear function that is represented by the graph?
On a coordinate plane, a line goes through points (negative 3, 0) and (negative 2, 4).
The slope is 3, and the y-intercept is 9.
The slope is 3, and the y-intercept is 12.
The slope is 4, and the y-intercept is 9.
The slope is 4, and the y-intercept is 12.
ANSWER IS D
LETS GO BACK TO INDIANA CERA 1983 JUST 4 BOYS IN THE BASEMENT CHILLIN PLAYIN D&D THERE WAS LUCUS THERE WAS WILLIY WILL THERE WAS DUSTIN THERE WAS MIKE BUT ONE NIGHT WILL GOES MISSING WHILE HE RIDING ON HIS BIKE YAS! THAT'S WHEN THEY MET ME ELEVEN I HAD NO HAIR ON MY HEAD I HAD BEEN SO CLOSE TO DEAD CURTOSIY DOCTOR BRENNER WAS HUNTING ME 24/7 JOYCE WAS HANGING CHRISTMAS LIGHTS ON THE WEB STARTING HEARING SOME WILLY HAD SAID THIS COULD BE A MESSAGE FROM THE BEYOND WHAT HAPPEND TO BARB SHE'S JUST GONE IN THE UPSIDE DOWN HOPPER'S ONTOP OF THE CASE WHILE IM GOING DOWN INTO SPACE TRYING MY BEST TO FIND WILLY DUSTIN GOT PUDDING FOR DAYS DEMEGORGANS GETTING ALL IN MY WAY BLAST EM TO PEICES JUST LIKE A GRENADE WHAT HAPPEND TO ME IM IN THE UPSIDE DOWN WHAT ABOUT NOW
Answer:
D. The slope is 4, and the y-intercept is 12.
Explanation:
Use slope formula.
y2-y1/x2-x1
Points are (-3, 0) and (-2, 4)
4-0/-2+3=
=4/1=4
Slope is 4.
Use point slope formula.
y-y1=m(x-x1)
y-0=4(x+3)
y=4x+12
The y-intercept is 12.
D. The slope is 4, and the y-intercept is 12.
Hope this helps!
Please mark as brainliest if correct!
________ provides the raw material for evolution because it can create new alleles, which are alternative forms of the same ______.
Mutation provides the raw material for evolution because it can create new alleles, which are alternative forms of the same gene.
A mutation is a variation or change that occurs spontaneously in the sequence of the genes that make up the deoxyribonucleic acid (DNA).
Mutations can occur at three different levels:
Molecular (gene or point): Occurs in the DNA sequenceChromosomal: A chromosome segment is altered Genomic: Affects a specific set of chromosomeWhat is a gene?In biology, a gene is a unit composed of a chain of deoxyribonucleic acid (DNA) that contains the necessary information to transfer hereditary traits from one generation to the next.
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Scalar is a _____ having _______ (amount)
Scalar is a physical quantity having only magnitude. (amount)
scalar quantity : The physical quantity which are specified with the magnitude are known as scalar quantities.
For example :
length - 5m
speed - 10 m/s , 10km/h etc
Mass - 6kg , 20g etc
energy - 30 joule
density - 56kg/m³
It has no direction. It has only magnitude. Described by real numbers.There is another quantity known as vector quantity.
vector quantity : The physical quantity which are specified by its magnitude and direction also.
For example, velocity, acceleration, force etc.
Scalar is a physical quantity having only magnitude. (amount)
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The only substance near earth's surface that is found naturally in the current atmosphere as a solid, liquid, and a gas is:_________
Water is the only substance that is naturally present near the surface of the planet in the current atmosphere as a solid, liquid, and a gas.
What is the atmosphere ?The gaseous mixture that covers the planet is its atmosphere. The Earth's atmosphere contributes to the viability of life. In addition to giving us air to breathe, it protects us from the majority of the Sun's harmful ultraviolet (UV) radiation, increases the surface temperature of our planet by around 33° C (59° F) due to the greenhouse effect, and mainly eliminates dramatic temperature variations between day and night. There is an atmosphere on each of the other planets in our solar system, but none of them has the same proportion of gasses or layered structure as Earth's atmosphere.
The most prevalent elements are nitrogen and oxygen, which make up about 78% of dry air (N2) and about 21% of it, respectively (O2). Argon, carbon dioxide (CO2), and numerous other gases are also present in the atmosphere, although at considerably smaller concentrations; each makes up less than 1% of the total gas mixture. Water vapor is also present in the atmosphere. Water vapor is present, but its usual concentration is only about 1%. Additionally, there are a lot of tiny liquids and solids "floating" in the atmosphere. The term "aerosols" refers to a group of particles that also includes dust, pollen, spores, salt from sea spray, volcanic ash, smoke, and other substances.
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the aurora is caused when electrons and protons, moving in the earth’s magnetic field of ≈5.0×10−5 t,≈5.0×10−5 t, collide with molecules of the atmosphere and cause them to glow. what is the radius of the circular orbit for
The radius of the circular orbit for an electron with a speed of 3 * [tex]10^{6}[/tex] m / s is 0.34 m
We know that,
[tex]F_{c}[/tex] = m [tex]V^{2}[/tex] / r
[tex]F_{m}[/tex] = q V B sin θ
where,
[tex]F_{c}[/tex] = Centripetal force
[tex]F_{m}[/tex] = Force due to magnetic field
m = Mass of electron
V = Speed of electron
r = Radius
B = Magnetic field
Given that,
B = 5 * [tex]10^{-5}[/tex] T
V = 3 * [tex]10^{6}[/tex] m / s
[tex]m_{e}[/tex] = 9.1 * [tex]10^{-31}[/tex] kg
[tex]q_{e}[/tex] = - 1.6 * [tex]10^{-19}[/tex] C
Since the electrons move in a plan perpendicular to the magnetic field,
Sin θ = Sin 90° = 1
By using force balance on electron,
[tex]F_{c}[/tex] = [tex]F_{m}[/tex]
m [tex]V^{2}[/tex] / r = [tex]q_{e}[/tex] V B
r = [tex]m_{e}[/tex] V / [tex]q_{e}[/tex] B
r = ( 9.1 * [tex]10^{-31}[/tex] * 3 * [tex]10^{6}[/tex] ) / ( - 1.6 * [tex]10^{-19}[/tex] * 5 * [tex]10^{-5}[/tex] )
r = 0.34
Centripetal force is the force on a body which makes it go in a curved path. It is denoted as [tex]F_{c}[/tex].
Therefore, the radius of the circular orbit for an electron with a speed of 3 * [tex]10^{6}[/tex] m / s is 0.34 m
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A cyclist starts from rest and accelerates at 4.0 m/s^2 for 3.0 s. the cyclist then travels for 20 s at a constant speed. how far does the cyclist travel?
A cyclist starts from rest and accelerates at 4.0 m/s^2 for 3.0 s. After that, the biker travels for 20 seconds at a steady speed. The cyclist travels 258 meters.
How does uniform motion work?This kind of motion is described as the motion of an item traveling in a straight line while maintaining a constant speed along that path while it traverses equal distances in similar amounts of the time, regardless of the length of the time.
A body's acceleration must be zero if it is moving rectilinearly and is doing so consistently.
When an object is travelling uniformly, its speed remains constant. When an item moves uniformly, its displacement is given by the formula x=vt, where v stands for constant velocity and t for the motion's time interval.
Given by, is the displacement of a motion with constant acceleration.
v is constant velocity
t is time interval of the motion.
Given by, is the displacement of a motion with constant acceleration.
[tex]x=v_{i}t+\frac{1}{2}at^{2}[/tex], where
It has a constant acceleration of a
[tex]v_{i}[/tex] is the motion's time interval, and t is the beginning velocity.
Answer and justification
Given: The cyclist's starting speed is,
[tex]v_{i}[/tex]=0
The cyclist's initial acceleration is 4 m/s2.
The span of time during which motion has a constant acceleration is,
[tex]t_{1}[/tex]=3s
The cyclist's displacement in 3 seconds will be,
[tex]x_{1}= v_{i}t_{1}+\frac{1}{2}at_{1}^{2}=0(3)+\frac{1}{2}(4)(3)^{2}=18m[/tex]
After 3 seconds, the cyclist's final speed will be,
[tex]v_{f}= v_{i}+at_{1}=0+4(3)=12m/s[/tex]
t2=20s is the time interval for a cyclist traveling at a steady speed.
The biker will move x2 in the following 20 seconds at a constant speed,
x2=[tex]v_{f}t^{2}[/tex]=(1/2)(20)=240m
The biker will have covered a total distance of
x=x1+x2=18+240=258m.
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In a certain digital waveform, the period is twice the pulse width. the duty cycle is?
A certain digital waveform has a period that is twice as wide as the pulse. the duty cycle is 50%.
Briefing:The ratio of pulse width to pulse duration is known as the duty cycle.
In actuality, duty cycle equals pulse duration divided by total out-of-band time.
i.e.) = pulse duration/total time period
So pulse width=on time + off time
i.e.)total time period
Duty Cycle=(1/2)*100
=50%.
What is digital waveform and its types?All Binary Information in Digital Systems Appear. A Digital Waveform Carries Binary Information as waveforms that represent sequences of bits – Common strategy: HIGH is 1 and LOW is 0.
What does a digital waveform look like?Digital signals typically have one of two values, such as 0V or 5V. These signals' timing graphs resemble square waves. The main distinction between analog and digital waves is that.
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A radioactive element decays with a half-life of 9 years. if a mass of the element weighs 6 pounds at t=0, find the amount of the element after 11.5 years.
By the half-life of radioactive, the remaining mass of radioactive elements is 2.47 pounds.
We need to know about the half-life of the radioactive elements to solve this problem. The radioactive element will decay over time and follow the equation
N = No(1/2)^(t/t'')
where N is the final quantity, No is the initial quantity, λ is the decaying constant, t is time and t'' is the half-life of a radioactive element.
From the question above, we know that
t'' = 9 years
No = 6 pounds
t = 11.5 years
Calculate the remaining mass
N = No(1/2)^(t/t'')
N = 6(1/2)^(11.5/9)
N = 2.47 pounds
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A student weighs a sample of an unkown metal and finds the mass to be 39.27g what is the metal?
The unknown metal with a mass of 39.27 g is potassium with the symbol K.
The mass of an atom is due to protons and neutrons present in it.
The protons and neutrons are together present in the nucleus of an atom.
The mass of any element is given by its mass number whose formula is
Mass Number = Number of protons + Number of neutrons
In the given case 39 = Number of protons + Number of neutrons
The only element of the periodic table which satisfies the above equation is potassium because it has 19 protons and 20 neutrons.
Thus, the unknown metal with a mass of 39.27 g is potassium with the symbol K.
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If the vertical initial speed of the ball is 4.5 m/s as the cannon moves horizontally at a speed of 0.70 m/s , how far from the launch point does the ball fall back into the cannon?
The distance of ball from the launch point is
0.92 m
Given:
U = 4.5 m/s = initial speed
V = 0.7 m/s = final speed
g = 10 m/s^2 = acceleration due to gravity
To Find:
distance of ball from the launch point
Solution: The law of motion equation
V^2 - U^2 = 2aS
(0.7)^2 - (4.5)^2 = 2*10*S
0.49 - 18.9 = 20S
- 18.41 / 20 = S
S = - 0.92 m
The distance of ball from the launch point is 0.92 m
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By observing the direction of current flow through the circuit, v oltage _____ can be determined.
Voltage polarity can be determined by the direction of current flow through the circuit
What is voltage polarity?All voltages and currents possess both magnitude and polarity. One current flows through the entirety of a series circuit with its polarity flowing from the negative battery terminal to the positive battery terminal. Polarities are also seen in voltage dips across loads. Utilizing the electron current's direction as a starting point is the simplest method for determining these polarities. The voltage is then negative where the electron current enters the load (Figure 31). No matter how many or what kind of loads are present in the circuit, this remains true. The potential drop is opposite of the source across the load. In opposition to the source voltage, the voltage dips lower it for the other loads.
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If the frequency of a wave is
20
H
z
, what is the period of the wave?
Find the number of outcomes in the complement of the given event. out of 259259 strawberry plants in a field, 142142 are ready for picking.
The number of outcomes in the compliment of the event are 0.54
Concept and calculationNo of strawberry plants in the field = 259259
No of plants that are ready for picking = 142142
so no of outcomes = 142142/ 259259 = 0.54 outcomes
Understanding of probabilityThe area of mathematics that deals with probability is called probability theory.
Probability is a concept that can be interpreted in a variety of ways, but probability theory tackles the idea in a rigorous mathematical way by expressing it through a series of axioms.
Typically, these axioms formalize probability in terms of a probability space, which links a collection of outcomes known as the sample space to a measure taking values between 0 and 1. An event is any defined subset of the sample space.
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The work function for chromium metal is 4.37 ev. What wavelenght of radation must be used to eject?
Wavelength of radiation must be used to eject electrons with a velocity of 2300 km/s is 63.9nm.
Equation :Einstein's equation for the photoelectric effect
hv = A + W
Where,
Energy of photon : E = hvx = hxc/λ
The work function for chromium is A
Planck's constant h= 6.626X 10⁻³⁴ Js
speed of light c = 2.998X10⁸ m/s
Velocity of 2300 km/s = 2300 X 10⁶ m/s
The kinetic energy of emitted electron
W = mv²/2 = (9.10939 X 10⁻³¹ kg X (2300X10⁶ m/s)²)/2 = 2.409X10⁻¹⁸
Hence,
λ = ch/A+W
λ = (6.626X10⁻³⁴JsX2.998X10⁸m/s)/(7X10⁻¹⁹J + 2.409X10⁻¹⁸J)
= 19.865X10²⁶Jm/3.109X10⁻¹⁸J = 6.39X10⁻⁸= 63.9 nm
Wavelength of radiation must be used to eject electrons with a velocity of 2300 km/s is 63.9nm
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I understand that the question you are looking for is "The work function for chromium metal is 7.0 x 10-19 J (4.37 eV). What wavelength of radiation must be used to eject electrons with a velocity of 2300 km/s?"
How many ml of a 5.0 m solution of sodium borate must be added to a 200 ml solution of 50 mm boric acid in order for the ph to be 9.6? the pka of boric acid is 9.24.
4.6 ml of a 5.0 m solution of sodium borate must be added to a 200 ml solution of 50 mm boric acid in order for the ph to be 9.6. the pka of boric acid is 9.24.
More about BoraxBorax, also known as sodium hydrated borate, is an ionic molecule having the chemical formula Na2H20B4O17, also written as Na2B4O710H2O. It is a crystalline solid that has no color and dissolves in water to form a simple solution.
It is frequently sold in powder or granular form and has a wide range of industrial and domestic applications, including as a pesticide, metal soldering flux, ingredient in glass, enamel, and pottery glazes, tanning agent for skins and hides, artificially ageing agent for wood, pharmaceutic alkalizer, and pesticide.
It serves as a buffer in laboratories that work with chemicals.
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URGENT QUESTION SOLVE FOR BRAINLYEST
Answer:
5.
a) it increases
b) 61.8
Explanation:
a) check the chart
b) add the wave speed of 4 and 5 then divide it by 2
In a normal distribution of measurements having a mean of 410 feet and a standard deviation of 45 feet, what percent of the distribution falls between 400 and 500 feet?
18.45 % percent of the distribution falls between 400 and 500 feet.
Z score is a standard score that tells you how many standard deviations away from the mean an individual value X.
Mean value ,μ= 410 feet
Standard deviation, σ = 45 feet
X = square of an individual
In a set with mean value and standard deviation the z score of a measure X is given by:
Z = (X - μ)/σ
percent of the distribution that falls between 400 and 500 feet
when
X = 400feet
Z = 400-410 / 45 = -0.22
p-value for Z= 400 is 0.4129
X = 500 feet
Z = 500- 410 / 45 = 2
p-value for Z = 500 is 0.2275
So there is 0.4129 - 0.2275 = 0.1854 = 18.45 %percent of the distribution falls between 400 and 500 feet.
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The volume of a container is reported as 3.49 ft3. what is the volume in units of in3?
The volume in units of in^3 is 6030.72 in^3.
The volume in units of 6.03x10^3 in3
1ft = 12 inch
So to convert foot into inches we have to multiply by 12
The volume of container = 3.49ft^3
=3.49×12×12×12
= 6030.72 in^3
What is the volume of a container?The amount of space a container encloses, or how much room is inside of it, is measured by its volume. The volume of a box can be calculated using this straightforward formula: volume V = L × W × H for a box with height H, width W, and length L.
Many different units can be used, however because of the way this formula is written, the volume would have length to the third power dimensions. For instance, if the container's measurements are given in metres, the capacity of the box will be given in metres squared, or m3.
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Find the x-component of this
vector:
Answer:
4.978 m
Explanation:
[tex]\mathsf v_x[/tex] , the x-component of a vector is given by [tex]\boldsymbol v\cos\theta[/tex] where [tex]\theta[/tex] is the angle formed by the vector with the x-axis. The sign of the x-component depends on which quadrant the vector is
Here [tex]\theta = 77.1[/tex]°
[tex]\cost\theta = \cos(77.1) = 0.22325[/tex]
The vector has magnitude of 22.3 m
So the x-component = 22.3 x 0.22325 = 4.978 m
Write a short summary of each step
Answer:
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Explanation:
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