In which of the following situations does gravity supply a centripetal force? the space shuttle orbiting the Earth a child on a merry-go-round a bike rounding a curve a book falling off a table

Jenny is playing on her spring bed, jumping up and down. She weighs 480. N, and her spring bed has springs with spring constant 1100N/m. What is the gravitational potential energy he will reach when she jumps to. 32m?

a soccer ball is kicked horizontally off a 22 meter high hill and lands 35 meters from the edge of the hill. determine the initial horizontal velocity of the soccer ball

Which scientist developed a model that can be used to predict the structure of a molecule?

How are watts measured?

Which statement best describes the long-term effects of using non-renewable resources? A. Burning fossil fuels pollutes the environment. B. Fossil fuels burn clean, reducing air pollution. C.

Explain Newton's First Law for the following. If you walk across the room holding a ball, when should you drop it to ensure that it lands on a target? Before, after or when you are directly on the target?

In what way are all forms of potential energy the same?

Enise is riding her bike and falls to the ground. During the collision, she hits both grass and cement. Which best explains why Denise had fewer injuries to the area of her body that hit the grass?

A rock is dropped into the Grand Canyon. It takes 18 seconds to hit the bottom. Calculate how deep the canyon is.

A change from one form of energy into another is called a. gravitational potential energy. b. work. c. conservation of energy. d. an energy transformation