Question 3
12
If an oject has a mass of 4 kg and it is above the ground 5 meters, what is the Gravitational
Potential energy?
0 392 Joules
180 Joules
O 110 Joules
O 196 Joules
Question 4
What is the fomula for Kinetic Energy?
12
10

During the experiment if you could triple the breakaway magnetic force with all other quantities left unchanged, what is the new value for the critical velocity if it was v0 (initial velocity), initially? (b) now if you halved the radius with all other quantities left unchanged, what is the new critical velocity if it was v0 (initial velocity), initially? (c) if during the experiment, critical velocity quadrupled with all other quantities left unchanged, what is the new breakaway force if its magnitude was initially f0,?

How many electrons in an atom could have these sets of quantum numbers? =3n=3 electronselectrons =4,ℓ=2n=4,ℓ=2 electronselectrons =6,ℓ=ℓ=−1n=6,ℓ=2,mℓ=−1

If the moon rises at a given location at 6: 00 p. m. today, about what time will it rise tomorrow night?