Gravity is all ways pulling down and the normal force acting on top of the object and for it to have to push or pull to the object
ANSWER:
300 J
STEP-BY-STEP EXPLANATION:
To know the work required, we must calculate the work in both cases, the difference would be the amount of work necessary for the speed to increase. The work done is the same as the amount of energy increase. The formula for kinetic energy is:
We calculate in each case:
We calculate the difference between the two to find out the work required:
The work required is 300 J
Answer:
option (c)
Explanation:
As the liquid 1 rests on the top of liquid 2, it means the density of liquid 2 is more than the liquid 1.
Thus, option (c) is correct.
Answer:
okay? so it's just 3 miles down?
Explanation:
if you can hear it 8.80 seconds later it's not much