A kg object has 400 j of potential energy. Find how high off the groumd the object is

Race car drivers must slow down as they make turns on the track. This is best explained by the law of inertia. Which statement best describes inertia for the car going around a turn? A) A body in motion stays in motion at the same speed.

A 1,800kg car has a momentum of - 50,400kgm/s. What is the velocity of the car?

2. A disturbance that generates a wave may be a simple pulse or shock. b. False a. True

White bunnies are a common sight on farms and in pet stores. Why are these domestic white rabbits uncommon in the wild?

Derive an expression for the gravitational potential energy of a system consisting of Earth and a brick of mass m placed at Earth's center. Take the potential energy for the system with the brick placed at infinity to be zero.

What must be your car's average speed in order to travel 235km in 3.25 hours?

At a certain location, the horizontal component of the earth's magnetic field is 2.5 * 10-5 T, due north. A proton moves eastward with just the right speed for the magnetic force on it to balance its weight. Find the speed of the proton.

An acrobatic airplane performs a loop at an airshow. The centripetal acceleration the plane experiences is 14.7 m/s2. If it takes the pilot 45.

Which of the following was NOT an outcome of Bacon's rebellion? A. A more direct focus on the "Indian Problem" B. A more focused plain to isolate black slaves from white servants C.

A science class did an investigation to see how many breaths it took for each student to blow up a balloon. Jason blew up his balloon with the fewest breaths. Which of these might explain why Jason took fewer breaths to blow up his balloon? A.