How much force is required to accelerate a 50 kg with a mass at 4 m/s2?

The greater the force squeezing 2 surfaces together, the smaller the friction force. * True False

What is the electrical force between q1 and q2? Recall that k = 8.99 * 109 N•meters squared over Coulombs squared ... 4.3 * 10 N 3.5 * 10 N - 5.4 * 10 N - 5.8 * 10 N?

At the top of the hill, the ball has 100 J of potential energy. Explain what happens to Mechanical Energy, Kinetic Energy and Potential Energy as the ball rolls down and reaches the bottom.

What determines an object's velocity? A. speed and direction B. speed at a particular instant C. average direction over the duration D. direction at a particular instant

How long would it take to travel one light year?

Stars set about how many minutes earlier each day? A. 8 B. 6 C. 4 D. 2

Whose atomic theory explains how atoms emit and absorb light

Closed clusters are groups of closely grouped stars that are located along the spiral disk of a galaxy. a. True b. False

Five forces are exerted on a box as follows: 10 N south 20 N north 50 N east 35 N west 15 N west. What is the resultant force?

A 1 kg particle moves upward from the origin to (23) m. Wit is work done by the force of gravity which is in - y direction s B. 19,6 D. 29.4) A.-19.6 J C. - 29.4 J