The table below shows the acceleration of gravity on different bodies in the solar system.
Object
Earth
Mercury
Mars
Neptune
Uranus
Pluto
Acceleration of gravity
(m/s2)
9.8
3.59
3.7
14.07
9.0
0.42
On which body would a 100 kg bowling ball have the least gravitational
potential energy when lifted to a height of 3 m?

Two 1.20-m nonconducting wires meet at a right angle. one segment carries + 2.50 µc of charge distributed uniformly along its length, and the other carries - 2.50 µc distributed uniformly along it, as shown in fig. 21.50. ( a. find the magnitude and direction of the electric field these wires produce at point p, which is 60.0 cm from each wire. ( b. if an electron is released at p, what are the magnitude and direction of the net force that these wires exert on it?