If you meant "What does the Earths system include?" here's your answer. The Earths system includes the atmosphere, which has all the planets air in it.
Explanation :
It is given that the ad says the ride is 50 meters tall and reaches a speed of 28m/sec at the bottom.
The efficiency is defined as the ratio of the output energy and the input energy.
In this case, the output energy is kinetic energy and the input is potential energy.
Output energy,
Input energy,
Efficiency becomes :
or
The ride is 80% efficient.
Answer: The work done is W = 3528J.
Explanation: Work (W) is an amount of energy used to do determined movement. To calculate it, we use the formula, as the movement is horizontal:
W = F.d, where
F is force on the object
d is distance it went through.
The force acting on the crate is due to friction.
= μ .
μ is the kinetic friction
is the normal force
There is no up and down movement, so , with g = 9.8m/s²
= μ . m . g
= 0.9 . 80 . 9.8
= 705.6 N
Substituing into the work formula, we have:
W = . d
W = 705.6 . 5
W = 3528 J
The work done to move the crate across a distance of 5m is 3528 J.
Answer:
-34.5 W
Explanation:
rate of heat transfer = Stefan-Boltzmann constant x emissivity x surface area x temperature^4
In an Inelastic Collision , the momentum of system is conserved .
In the question ,
it is asked about what happens in inelastic collision .
The Inelastic collision is defined as a collision in which there is a loss of kinetic energy. While the momentum of system is conserved in an inelastic collision, kinetic energy is not.
That's because some kinetic energy gets transferred to something else like ⇒ thermal energy, sound energy, or material deformation .
For Example : Let the two similar trolleys are traveling towards each other and if they collide,
but the trolleys are equipped with magnetic couplers they join together in the collision and behave like a one connected mass. This collision is perfectly inelastic .
Therefore , the details about Inelastic Collision is explained above .
The given question is incomplete , the complete question is
What happens in an inelastic collision ?
Learn more about Inelastic Collision here
brainly.com/question/14521843
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