A student walks 3.0m [E] and then 4.0m [N] in 5.0s.

What is his average speed?

What is his average velocity?

Ten seconds after starting from rest a freely falling object will have a speed of about A) 10m/s B) 50m/s C) 100m/s D) more than 500m/s

Why is it sometimes written in this way on the front of an ambulance?

Two vehicles collide and stick together. After the collision, their combined y-momentum is 2.40 * 104 kilogram meters/second, and their x-momentum is 7.00 * 104 kilogram meters/second.

A 1500 Kg automobile is traveling at a velocity of 100 m/s. Is its energy potential or kinetic? How much energy does it possess? (Remember to convert kg to g)

The effect is the change of pitch heard when the source of the sound approaches and then moves away from a stationary person.

You have just installed a new sound card in your system, and Windows says the card installed with no errors. When you plug up the speakers and try to play a music CD, you hear no sound. What is the first thing you should do? The second thing? a.

Why does convection occur only in fluids?

The force of repulsion between two like-charged particles will increase if

An automobile tire having a temperature of -2.6°C (a cold tire on a cold day) is filled to a gauge pressure of 24 lb/in^2 What would be the gauge pressure in the tire when its temperature rises to 43◦C?

Compared to that of a plane on the ground, Earth's gravitational pull on a plane 7 miles above Earth is approximately A) zero. B) the same. C) half as much. D) twice as much.