A 82.1 kg person stands on a scale. what normal force does the scale exert on him? (Unit = N)

A 50-kg object is accelerating to the right at 10 m/s². What is the magnitude of the rightward net force acting on it (in Newtons) ?

Compare and contrast atoms and molecules

Devonte pushes a wheelbarrow with 830 W of power. How much work is required to get the wheelbarrow across the yard in 11 s? Round your answer to two significant figures.

What would a bullet fired from a very long distance, such as 1000 yards from the target do as it travelled along a straight path? Why? Descrbe all of the forces actiong on the bullet.

Karen has a hunch her partner is cheating on her. To confirm her suspicions, Karen has checked private text messages and emails, as well as listened in on private phone calls from the other room.

Niko was hiking in the mountains when he found a spring, or a place where water naturally flows out of the ground. Where did the water in the spring come from? A. It is water that was squeezed out of an igneous rock when the rock changed. B.

Is mount st. Helen still active today

When a pendulum swings if not continuously pushed it will stop eventually because some of its energy is changef into what energy

How does a car's kinetic energy change when it speeds up from 10 to 20 m/s? a. It quadruples. b. It stays the same. c. It doubles. d. It triples.

A boulder on the mythical planet mongo drops off a cliff and falls from rest 1000 m in 10.0 s. (A) what's the initial speed of the Boulder? (B) determine the acceleration due to gravity on mongo. Ignore friction.