Answer:
B
endothermic: heat taking in
exothermic: heat given out
We know, Potential Energy = Force * Height
Here, F = 40 N
h = 5 m
Substitute their values,
U = 40 * 5
U = 200 J
In short, Your Answer would be Option A
Hope this helps!
B)
The speed of the cart changed because it stopped.
Hope I could help!
-Marshy
Answer:
First is incrcersing mangnetic field second photosphere
Explanation:
sorry if the first one is wrong
Use the formula 1/2*I*w^2 where w is the angular speed and I is the rotaional inirtia (for disk it is .5*mass*radius^2).
