Waves carry energy.

Which of these are fundamental physical quantities? Select all that apply. 

Why do you hear thunder a substantial time after seeing a lightning flash?

A baseball with mass 0.14 kilograms and speed 40 m/s is caught. If all of its kinetic energy is converted to heat as it is caught, what is its temperature change? (Assume the baseball’s specific heat capacity is 1,000 joules per kilogram degree Celsius.) (Type your final answer with units in the box below. Show your equation and work on your scratch paper, or include it in the box below.)

The prediction of special relativity that moving clocks run slow is

Which mechanism(s) of heat transfer will work in a vacuum?

If the same-sized force is made to act over a smaller area, the pressure is

A rock brought back from the Moon weighs 4 pounds and has a volume of 0.02 cubic feet. What is the rock’s weight density? (Type your final answer with units in the box below. Show your equation and work on your scratch paper, or include it in the box below.)

When an object reaches its terminal speed, its acceleration is zero.

The half-life of uranium-232 is 70 years. In a given sample of uranium-232, what fraction (or percent) of the original atoms will remain after 140 years?  (Type your final answer with units in the box below. Show your equation and work on your scratch paper, or include it in the box below.)