To solve this problem it is necessary to apply the concepts related to momentum theorem.
The equation for impulse is given as
Where
I = Force
t = Time
At the same time we have the equation for momentum is given as
The impulse momentum theorem states that the change in momentum of an object is equal to the impulse applied to it. Therefore
I = p
Ft = mv
Solving to find the force
Therefore the magnitude of the average horizontal force by diver on the raft is 1680N
The index of refraction of a material is the ratio between the speed of light in vacuum, c, and the speed of light in that material, v:
where the speed of light in vacuum is
. The speed of light in benzene is
, so we can use the previous relationship to find the refractive index of benzene:
Answer:
2.13m/s^2
Explanation:
Use equation:
Fnet=ma
If 17.7 is the netto force (Fnet) then you just substitute the values in and solve.
Note m is mass (kg) and a is acceleration (m/s^2)
When water vapor condenses during the formation of clouds, energy is released into the atmosphere through the process of latent heating.
Huge amounts of solar energy are absorbed during the evaporation process. There is no thermal equilibrium in protostars. They emit radiation that causes them to lose energy, but their interior temperatures aren't hot enough to start nuclear fusion to replenish the energy. They consequently tighten and warm up. Fusion can replace the energy they are losing once they are heated enough on the inside (about 107 K). The gas atoms start to collide more and get closer together as the cloud gets smaller, which warms them up. The cloud keeps shrinking and heating up until the force of gravity is balanced by the pressure from the heat.
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