A portable lantern is powered by several batteries, the lantern's bulb uses 96 watts of power, while the current in the lantern is 4 amps. What is the total voltage of the batteries? (answer must include units)

electric field is a function of 1/r^2

yes, the force per unit charge for a point charge is inverse square law.

t = 1/400 h   ⇔ 0.0025 h ⇔ 9s ⇔ 0.15 m

any of the answers are correct.

b. false

explanation:

suppose a rock in free fall is dropped off a cliff. after falling for 5 seconds, its speed would not be 100 m/s.