Determine the amount of potential energy of a 5-newton book that is moved to three different shelves on a bookcase. the height of each shelf is 1.0 meters, 1.5 meters, and 2.0 meters.

Potential energy is defined as

here we have

mg = weight = 5 N

now for different heights we can say

U = mgh

so potential energy in all three shells will be different and increases with height

when jerome paddle in flowing river towards east the net speed of jerome will increase

so the net speed of jerome will be given as

now the speed of paul will be same as it is given as he is running on the ground

so

so here we can say since the speed of jerome is more so he will win the race

now as we know the distance so the time difference is given as

so jerome will reach first and the time difference will be 203.55 s or 3.4 min

i need with 1.3.2 investigate cycling o2 and co2 apex

we need to see it