Which of the following are characteristics of voltage in circuits? Question 16 options:

is measured in volts

pushes free electrons around a circuit

causes current to flow

all of the choices

Answer quickly (15 points) a comet is approaching earth. describe earth’s gravitational pull as the comet gets closer to it. a. remain constant b. increase c. decrease d. reversed

Name three different units of energy used to measure heat and describe what type of situations each is usually used.

Henry, whose mass is 95 kg, stands on a bathroom scale in an elevator. the scale reads 830 n for the first 2.4 s after the elevator starts moving, then 930 n for the next 2.4 s. part a what is the elevator's speed 4.8 s after starting? express your answer with the appropriate units.