Answer:
a = 5m/s^2
Explanation:
Vi=0 m/s
ΔY=10m
Δt=2s
find acceleration
With the givens and the acceleration being the only one missing, we can safely use the Δy = Vi Δt + 1/2 a (Δt)^2 formula
Plug it in and we get:
10 = 0 x 2 + 1/2 a (2)^2
10 = a2
10/2 = a 2/2
a = 5 m/s^2
I hope this helps :)
A footballer applies a force of 30.0N, for a period of 0.05s, if the mass of the ball is 0.075kg, calculate the speed which half of the ball moves
state any two factors affecting pressure in liquids
Answer:
Density of liquid (ρ)
Depth of liquid (h)
Acceleration due to gravity (g)
Explanation: Pressure within a liquid depends only on the density of the liquid, the acceleration due to gravity, and the depth within the liquid.
Answer:
depth
height
acceleration due to gravity
In a friendly soccer game, you hit a ball with a speed of 13 m/s at an angle of 24 degrees above the horizontal. (A) How long does it take for the ball to reach the goal if it is 4.2 meters away? (B) How high is the ball when it reaches the goal?
a) V= 13m/s at 24 degrees
X component of velocity Vx= V*cos24 =11.876 m/s
distance =4.2 meter
time =distance/speed =4.2/11.876 =0.3537 s
b) Vertical component of speed = Vy=vsin24=
5.29 m/s
s=ut+0.5at^2 =5.29880.3537-0.5*9.8*0.3537^2
=1.257 m above ground
Hope I helped! ヾ(^▽^*)))
what precautions should you take when working with electronic equipment?
Answer:
Be sure to unplug the power source of all electrical equipment before working on it. Always pull from the plug, not the cord. Always wear proper non conductive clothing – insulated gloves, non conductive protective apparel and shoes with insulated soles. Avoid loose clothing or ties.
. A car starts to move from rest. If its velocity becomes 90km/hr after 3s, calculate its acceleration
Answer:
32.5/s squared
Explanation:
How many electrons have been removed from a positively charged electroscope if it has a net charge of 6x10-11?
answer and explain if u can pls :)
Answer:
is it the ans you are looking for
Infrequent urination, dry skin, and dizziness are all symptoms of
Answer:
Dehydration
Explanation:
What is the force of a 13kg ball that has been dropped and has fallen for 1 second?
Answer:
127.4 newtons
Explanation:
Assuming g = 9.8:
F = ma = 13(9.8) = 127.4 N
The force of a 13 Kilogram ball that has been dropped and has fallen for 1 second, then the force offered by the ball would be 127.53 Newtons.
What is Newton's second law?Newton's Second Law states that The resultant force acting on an object is proportional to the rate of change of momentum.
As given in the problem we have to find the force of a 13-kilogram ball that has been dropped and has fallen for 1 second,
The force of the dropped ball = mass of the ball × acceleration due to gravity
The force of the dropped ball = 13 × 9.81
= 127.53 Newtons
Thus , the force of a 13kg ball that has been dropped and has fallen for 1 second would be 127.53 Newtons.
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ok i bet this one will suprise you when i tell you the answer
how many atoms are in the world no looking it up i want your honest gusse.
Answer:
i don't know like maybe
Explanation:
1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
two sports where it would be good to have long thin bones , explain your answer
Answer:
Well, I know basketball is one. Also, Track and Field and tennis
What can be seen in a crowd, in the ocean, and
felt under ground?
Answer: Convection currents in the molten mantle cause the plates to slowly move about the Earth a few centimeters each year. Many ocean floor features are a result of the interactions that occur at the edges of these plates.
Explanation:
The convection currents can be seen in a crowd, in the ocean, and can also be felt underground.
A convection current simply means the process that has to do with the movement of energy from one particular place to another.
A convention current is also known as convection heat transfer. Convention currents are due to differential heating. This brings about the circulation patterns that are referred to as convection currents that can be found in the atmosphere, water, and the mantle.
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water being turned into ice cubes in a freezer is an example of _____.
Answer:
an exothermic process and the change in enthalpy, ΔH, will be a negative number
Water is turned into ice cubes in a freezer is an example of an exothermic process.
What is an exothermic process?An exothermic process can be described as a thermodynamic process or reaction that releases energy from the system to its surroundings, usually in the form of heat, light, or sound.
While an endothermic process is an opposite of an exothermic process where the heat absorbs energy usually in the form of heat. In the physical sciences of chemical reactions, the chemical bond energy is changed into thermal energy (heat).
In exothermic reactions, the heat that is liberated by the reaction occurs the form of the kinetic energy of molecules. The transition of electrons from one energy level to another leads light to being released. This light is equal to the stabilization energy of the energy for chemical reaction.
The freezing of water is an exothermic process as the water becomes solid it releases energy to the surroundings.
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why are astronauts weightless in the space station?
Answer:
Astronauts float around in space because there is no gravity in space. Everyone knows that the farther you get from Earth, the less the gravitational force is. Well, astronauts are so far from the Earth that gravity is so small. This is why NASA calls it microgravity.
Explanation:
the pressure of a gas is inversely proportional to
Answer: The pressure of a gas is inversely proportional to its volume.
Explanation:
One way to state Boyle's law is “All other things being equal, the pressure of a gas is inversely proportional to its volume.”
Answer:
One way to state Boyle's law is “All other things being equal, the pressure of a gas is inversely proportional to its volume.”
Explanation:
Hope this helps.
What science projects should I do? Please just choose something basic!
a circuit breaker is tripped when the current in the circuit is greater than 15 A. If the voltage difference is 120, what is the power being used when the circuit breaker is tripped?
Answer:
The answer would be 1800W
Explanation:
P=15a × 120 V
Bettina was sick for several weeks, and her slow recovery has made her realize that she is not as healthy as she thought she was. She has never been fond of exercise and is intimidated at the thought of going to a gym. Walking seems manageable, and there are some hills in her neighborhood. But she knows that is not aerobic exercise. Is this a good place to start?
OPTIONS:
A.
No, walking is neither aerobic nor anaerobic exercise.
B.
No, exercise that is not aerobic never does much good.
C.
Yes, but she will not have any health benefits unless she escalates it.
D.
Yes, she can slowly improve her capacity and move to aerobic exercise later.
Yes. Walking the hills in her neighborhood is a wonderful place to start.
D. She can slowly improve her capacity and move to aerobic exercise later.
Yes, she can slowly improve her capacity and move to aerobic exercise later. The correct option is (D).
Even if it isn't initially aerobic, starting with walking is a wonderful place to start, especially if Bettina isn't used to exercising frequently. Walking is a low-impact activity that is simple to fit into daily life and can be used as a gentle introduction to developing a habit of physical activity.
Even while walking isn't typically thought of as an aerobic workout, it nevertheless has several health advantages, including enhancing cardiovascular health, boosting energy, lowering stress, and aiding in weight management. Bettina can eventually increase the length and intensity of her walks to make them aerobic as she steadily increases her endurance and fitness level through walking.
Hence, the correct option is (D). Yes, she can slowly improve her capacity and move to aerobic exercise later.
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how many electrons does boron have
Answer:
5 Electrons
Explanation:
Boron has 5 protons, 5 neutrons and 5 electrons. The atomic number (also known as the proton number) of Boron is 5 as it has 5 protons. It has a mass number of 10, as protons and neutron have a relative atomic mass of 1 each, and a neutral charge, as there are equal numbers of +1 protons and −1 electrons.
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What causes the amount of gravitational force to change?
Answer:
Mass and Distance
Explanation:
mass and distance affect the strength of gravitational force on an object.
what thermodynamic property describes the relationship of an equilibrium to temperature?
The thermodynamic property that describes the relationship between equilibrium and temperature is Thermodynamic equilibrium
Thermodynamics is a science that focuses on explaining chemically and physically phenomenons related to:
HeatTemperatureEnergyIn thermodynamics, the thermodynamic equilibrium occurs if the temperature or heat is in balance, and therefore it will not change in regular conditions. For example:
If a liquid has the same temperature as its surroundings, the temperature is likely to remain stableThe temperature of a liquid or solid does not change unless there are specific conditionsAccording to this, thermodynamic equilibrium describes the relation of equilibrium to temperatureLearn more in: https://brainly.com/question/22447172
What are the values of temperature and pressure under STP, using the units of kelvin and kilopascals?
Answer: STP is 273.15 K and 0.986 92 atm.
Explanation:
STP is defined as 273.15 K and a pressure of exactly 100 kPa (1 bar).
Hope this helps! :)
What affects the vertical (y-component) of a projectile?
A. Gravity
B. Air resistance
C. Velocity
D. Speed
Answer:
Gravity
EXPLANATION:
In the vertical or y direction, however, the projectile experiences the effect of gravity. As a result, the y component of the velocity is not constant, but changes. The y component of the acceleration ay is the downward acceleration due to gravity.
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A man is pulling a cart to the left with a force of 60 N. A second man is pushing the cart to the left with a force of 30 N. There is a force of 90 N acting on the cart in the opposite direction. What is the net force acting on the cart AND how can the motion of the cart be described?
This cart would move with constant velocity or be at rest because the net force is equal to zero (0), which means the three (3) forces acting on the cart opposes each other.
Let the first force be A. Let the second force be B.Let the third force be C.Given the following data:
Force A = 60 Newton, to the left.Force B = 2 Newton, to the left.Force C = 90 Newton, to the right.To find the net force acting on the cart:
A net force can be defined as the vector sum of all the forces that are acting on a physical object or body.
This ultimately implies that, a net force is a single (one) force that substitutes the effect of all the forces acting on a physical object or body.
Mathematically, net force is given by the following:
[tex]Net \;force = F_1 + F_2 + F_3 + F_4 + .....F_n[/tex]
Where:
F represents each force.[tex]Net\; force = 60 + 30 + (-90)\\\\Net\; force = 90 - 90[/tex]
Net force = 0 Newton
Based on Newton's First Law of Motion, this cart would move with constant velocity or be at rest because the net force is equal to zero (0), which means the three (3) forces acting on the cart opposes each other.
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The answer and solution to how to calculate the minimum steam force.
Answer:
from which class are you the answer of this depend on your class
When do (object distance) is very large, what does the thin lens equation predict for the value of 1/f?
Similarly, when do (object distance) is very small and less, what does the thin lens equation predict for the value of 1/f?
Please explain your answer properly, especially for the first question. Thank you
Answer:
1 / f = 1 / o + 1 / i
1 / image distance + 1 / object distance = 1 focal length
If the object distance is large the image will be at about the focal length
The value of 1 / f is fixed for any one particular lense
As the object distance decreases the image must increase
The above equation can also be written as
o i / (i + o) = f or i / (i / o + 1) = f
If for instance o was very large the image would be at the focal length
Hello, are there any furries, artists, equestrians, gamers, athletes, etc? If so reply down below
Say “OwO”if your a furry
Say “bonjour” if your an artist
Say “:-}”or yee haw if your an equestrian
Say “GG!” if your a gamer
Say “Just believe in yourself. Even if you don’t pretend that you do and, and some point, you will.” if your an athlete ⚽️⚾️⛳️⛸
Answer:
bonjour,GG, Just believe in yourself
Explanation:
Answer:
OwO (Also "bonjour" and "GG!" but saying those feels uncomfortably forced qwp)
how to turn off check engine light to pass emissions
Answer:
you must connect a radar reader under the steering wheel and clear it
Explanation:
if a velocity time graph is hortizontal then velocity is
Answer: If a velocity time graph is horizontal then the velocity is constant and there is no acceleration.
Explain how energy is transferred in an impact situation such as a car crash.
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which transition will lead to the emission of light with longer wavelength?
Answer:
(C)
Explanation:
its C ok
The transition that will lead to the emission of light with longer wavelengths is n = 3 to n = 2. The correct option is c.
What is the emission of light?The largest energy change, and hence the shortest wavelength, x nm, would occur during the transition from the highest to the lowest energy levels. When an electron moves from the n = 5 to the n = 1 level, an atom emits yellow light.
The Bohr model of the atom is named for Niels Bohr, who created a model of the electron in which electrons were arranged into energy levels using observations of atomic spectra.
Because electrons can only exist in the energy levels and not in the intermediate states, they must absorb or emit a certain amount of energy to change energy levels.
Therefore, the correct option is c. n = 3 to n = 2.
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The question is incomplete. Your most probably complete question is given below:
a. n = 1 to n = 3
b. n = 4 to n = 3
c. n = 3 to n = 2
d. n = 3 to n = 1
e. n = 2 to n = 3
