A water-balloon launcher with mass 4 kg fires a 0.5 kg balloon with a velocity of 3 m/s to the east. what is the recoil velocity of the launcher?

Maggie participated in a race. She ran 100 meters west and then turned back and ran to the starting line to complete the race. Maggie covered this entire distance in 40 seconds. What are her average speed and average velocity?

I have a special thermos that has a vacuum chamber between my hot soup and its outside wall. Because my soup is isolated from its surrounding by a vacuum, A. My soup will stay warm forever because thermal energy cannot pass through a vacuum. B.

An object in motion stays in motion and an object at rest stays at rest is which of Newton's Laws?

A positively charged ion will bond with A) a negatively charged ion. B) a neutral atom. C) another positively charged ion. D) nothing else.

12. We've learned that velocity is a vector quanuty. Is force also a vector quantity? Why or why not?

Why is it important for engineers to design bumper cars safely

What must her minimum speed be just as she leaves the top of the cliff so that she will miss the ledge at the bottom, which is 1.75 m wide and 9.00 m below the top of the cliff?

Which statement describes how light behaves when it strikes a translucent material? A. Light is scattered. B. Light is transmitted. C. Light is reflected. D. Light is absorbed.

A certain gas is present in a 15.0 l cylinder at 2.0 atm pressure. if the pressure is increased to 4.0 atm the volume of the gas decreases to 7.5 l.

Choose all the answers that apply. To qualify as a planet, a celestial object must: have an irregular shape revolve around the sun orbit in a clear area have enough gravity to have a spherical shape have a satellite