How much power does a toaster have if it does 21,000 joules of work in 30 seconds?

A motorist travels at 270 km in p hours at a certain average speed. an expression for the distance that this motorist travelled in x hours at the same average speed is what

At what condition does a body become weightless at the equator?

I am doing a project on inertia so if I roll a tennis ball and it hits the wall and rolls back does that demonstrate inertia?

Investigators are on the scene of a terrible traffic accident involving a large truck and a passenger van. The van had been stopped at a red light, but the large truck's brakes had failed so it plowed into the stationary van.

An amusement park carousel travels at a speed of 8.0 m/s. if the circular track of the carousel is 60.0m around, how long will it take to make one complete revolution

A swimmer jumps from a waterfall thats is 8.5 m high from the lake below. How fast must he run horizontally to dive 2.5m away from the base of the waterfall?

What happens (as far as energy goes) when a molecule of gas strikes the wall of a container?

The boom of a fire truck raises a fireman (and his equipment - total weight 280 lbf) 60 ft into the air to fight a building fire.

Two masses are separated by 1 m. suppose the masses are moved so they are 2 m apart how will the gravitational force change

Bob rubs a piece of fur on a hand rubber rod, giving the rod a negative charge. what happens?