Nicholas sends 20.0 minutes ironing shirts with his 1800-watt irn. How many joules of energy were usedby the iron

How does the frequency of an electromagnetic wave compare with the frequency of the vibrating electrons that produce it?

If a 1500 kg car is moving at 20 m/s and hits a brick wall and you know that it comes to rest in 0.80 s then how much force does the car sustain

A 10.0-g bullet moving at 300 m/s is fired into a 1.00-kg block at rest. the bullet emerges (the bullet does not get embedded in the block with half of its original speed. what is the velocity of the block right after the collision?

Nearly all the visible light we see from the sun is emitted from the

A Honda Hawk motorcycle and its rider with a combined mass of 450 kg travels around a curve of radius 106 m with a speed of 18 m/s. Calculate the coefficient of static friction of the pavement if they negotiate the curve without skidding.

Charlotte, a 60.0-kg skin diver, shoots a 2.0-kg spear with a speed of 15 m/s at a fish who darts quickly away without getting hit.

All objects are attracted to each other by the force of a. weight. b. mass. c. inertia. d. gravity.

landslides and mudslides caused by lava flows are ___ deadly than the lava flow itself. a. more b. less

3. How is electric potential different than electric potential energy?

Ethan pushes a wooden box across a carpet floor then he pushes the same box across a smooth marble floor why does Ethan find it easier to push the box on the marble floor than carpet floor