Answer:
A it takes less force to stop the 1 kg ball because it has less inerita
Explanation:
You drove 20 more mph than what you did before. The more force is 20 because you drove 20 more mph.
Answer:
3. 560W
Explanation:
First we calculate the work required for the 700N weigh student to climb up by 8 meters. Work is force times distance
W = Fs = 700 * 8 = 5600J
The average power is defined as the rate of energy expended over a unit of time. In order words, work divided by time duration
P = W/t = 5600 / 10 = 560 W
Let's see..
- Melting
-Evaporation.
Two.
