A car with mass 450 kg has a kinetic energy of 16,256 J. What is the speed of the car?

A. 5.9 m/s

B. 1.2 m/s

C. 8.5 m/s

D. 11.2 m/s

You are going sledding with your little cousins during a well-earned break. You push your 23 kg cousin so that they have a speed of 6 m/s at the top of the hill that is 17 m tall.

Distinguish between kinectic energy and potential energy.

What happens as a result of an increase in the intensity of a sound wave? - the frequency of a soundwave increases. - the velocity of the sound wave decreases. - the energy of the soundwave increases. - the amplitude of the soundwave decreases

A conducting sphere contains 6.08 trillion excess electrons. what is the magnitude of the charge on the sphere? (in c)

Why a steel ship becomes magnetized as it is constructed?

If a force of 40 newtons moves a cart a distance of 9 meters, the work done is Nm. If the same force moves the same cart three times that distance, the work done is Nm. NextReset

1. Identify this mystery element: I am very reactive, I desperately want to get rid of my electron. When I make a compound with Chlorine it is table salt. Who am I? 2. Identify this mystery element. I am amazing and have no cares in the world.

Since all stars begin their lives with the same basic composition, what characteristic most determines how they will differ? 1. location where they are formed 2. time they are formed 3. luminosity they are formed with 4. mass they are formed with 5.

What primarily involves heat transfer by convection?

Each of the following lists two facts. which pair can be used with newton's version of kepler's third law to determine the mass of the sun? each of the following lists two facts.