Have more energy than
a. ultraviolet rays; x-rays
b. radio waves; visible light
c. gamma rays; infrared rays
d. radio waves; microwaves

Atrain departs from its station at a constant acceleration of 5 m/s. what is the speed of the train at the end of 20s?

What distance does a car travel as its speed changes from 0 to 20 m/s in 17 s at constant acceleration?

Suppose a force of 60 n is required to stretch and hold a spring 0.1 m from its equilibrium position. a. assuming the spring obeys hooke's law, find the spring constant k. b. how much work is required to compress the spring 0.5 m from its equilibrium position? c. how much work is required to stretch the spring 0.6 m from its equilibrium position? d. how much additional work is required to stretch the spring 0.1 m if it has already been stretched 0.1 m from its equilibrium? a. kequals 600