A ball is released from a hot air balloon moving downward with a velocity of - 10.0 meters/second and a height of 1,000 meters. How long did it take the ball to reach the surface of Earth? Given: g = - 9.8 meters/second2

When charged particles are separated by an infinite distance, the electric potentialenergy of the pair is zero.

A 4kg object has 180 J of kinetic energy. How fast is it moving?

A very long, uniformly charged cylinder has radius R and linear charge density λ. Find the cylinder's electric field strength outside the cylinder, r≥R . Give your answer as a multiple of λ/ ε 0

Which of the following is equal to distance divided by time? A. Displacement B. Acceleration C. Velocity D. Speed

The sun emits electromagnetic waves at many frequencies, but mostly in the infrared, visible, and ultraviolet spectrums. what kind of energy is this?

What is one exsample of a closed economy

A transfer by work from the system, an elevation decrease of 50 m, and an increase in velocity from 15 m/s to 30 m/s. The specific internal energy, u, decreases by 5 kJ/kg and the acceleration of gravity is constant at 9.7 m/s².

What is the best prediction for the weather on the day after high pressure system passes

Is it possible to have motion in the absence of a net force?

There are 2 charged particles, A and B. You know that particle A is positively charged. When you place particle B next to particle A, then particle B starts moving away from particle A. What does this mean for particle B?