7) This is a set of equal and opposite forces.

A book with a mass of 2.2 kg rests on a table Find the force of the Earth on the book.

A baseball is launched horizontally from a height of 1.8 mThe baseball travels 0.5 m before hitting the ground. How fast is the baseball moving, rounded to the nearest hundredth? m/s

a book is being pushed left with 3 N of force, and forward (at a 90 degree angle to the left force) with 4 N of force. what is the net force on the book?

How is a runoff created

Steve and Carl are driving from Scranton to Bridgeport, a distance of 180 miles. If their speed averages 60 miles an hour, how long will it take them to get there? A. 3.5 hours B. 3 hours C. 2.5 hours D. 4 hours

Through how many volts of potential difference must an electron, initially at rest, be accelerated to achieve a wave length of 0.27nm? A) 4.6 V B) 0.046 V C) 0.27 V D) 4.6 MV E) 4.6 kV

A roller coaster track is a good example of the law of conservation of energy. Use this law to explain these facts about a roller coaster track. a. The largest hill for a roller coaster track is the first hill on the track.

Which statement about the spectrum of light that emerges from a prism is true? A. High-frequency colors bend more than low-frequency colors. B. High-frequency colors bend less than low-frequency colors. C.

What kind of process can create "rogue" waves? a. Constructive interference c. Refraction b. Destructive interference d. Standing waves

What are constellations? 1. Apparent groupings of stars and planets visible on a given evening 2. Groups of galaxies gravitationally bound and close together in the sky 3.