<span>They allow us to see distant objects as they were long in the past.
-The further we look into space the further back we look in time.</span>
When you are holding the ball it has potential energy and when you through it it will then have kinetic energy as it go's up then it will pause for a brief sec. and then that 's when it has the greatest potential energy and then when it falls back down is when it has the greatest kinetic energy. The mechanical energy would be when you through the ball.
Hope this helps:)
Answer:
Fr = 48 [N] forward.
Explanation:
Suppose the movement is on the X axis, in this way we have the force of the engine that produces the movement to the right, while the force produced by the brake causes the vehicle to decrease its speed in this way the sign must be negative.
∑F = Fr
The movement remains forward, since the force produced by the movement is greater than the braking force.
Answer:
Mike can travel 80 Km in 4 hours