A small charged bead has a mass of 1.0 g. It is held in a uniform electric field of magnitude E = 200,000 N/C, directed upward. When the bead is released, it accelerates upward with an acceleration of 20 m/s2. What is the charge on the bead?

A low-friction track is set up with a spring on the right end. In the middle of the track, a 1.8-kg cart moving to the right at 5.0 m/s overtakes a 3.6-kg cart moving to the right at 2.0 m/s. After the collision, the 1.8-kg cart is moving at 1.7 m/s.

Which of the following is the best definition of acceleration?

Why does an ice cube melt when you hold it in your hand? Question 1 options: Heat from the ice cube is transferred to your hand. The ice cube radiates heat to your hand. Your hand transfers temperature to the ice cube.

A constant power is supplied to a rotating disc. the relationship of angular velocity of disc and number of rotations made by the disc is governed by

Distinguish between constructive interference and destructive interference.

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.