Answer:
Only at point a
Explanation:
If the velocity is greater than zero, than the object must be moving.
Answer:
363000 J or 363 kJ
Explanation:
Because the car is not rotating, it has no rotational kinetic energy. Its kinetic energy is then simply
On e2020 the answers are:
1. There is no rainbow-like halo around the image.
2. Reflecting telescopes can be made very large.
4. Only the reflecting side of the primary mirror needs to be perfectly shaped and smooth.
I hope that helps!!
Power is the rate of doing work or the energy consumed over a period of
time. It can be written as Power = work / time. In the situation above, the
work done is constant but the time going up the stairs increases. Power is
inversely proportional to time. Therefore, as time increases, the power decreases.
Answer:
15 m/s
Explanation:
Initial momentum = final momentum
(25 kg) (15 m/s) + (25 kg) (0 m/s) = (25 kg) (0 m/s) + (25 kg) v
v = 15 m/s
