the speed of a car weighing 1500kg increases from 40ms to 50ms. calculate the change in it's momentum

If you put a helium-filled balloon in the refrigerator, what will happen?

Which best describes the difference between internal and thermal energy?

Which of the following is a direct benefit of the use of assembly lines in production a. laws against theft fraud and coercion are needed to protect free choice. b. the government needs to plan efficient outcomes. c. competition among producers by itself cannot ensure a wide range of consumer choices. d. works pressure the government to guarantee minimum wages