A book with a mass of 1.2 kg sits on a bookshelf. If it has a gravitational

potential energy of 50 J, how high is the shelf? The acceleration of gravity is

9.8 m/s2

A. 1.2 m

B. 4.3 m

C. 5.9

D. 2.7 m

A student measures the speed of yellow light in water to be 2.00x10^8

What is the correct name for this formula: SiO2?

Which form of energy does the motor convert most of its electric energy into?

Is condensation adding thermal energy

The hour and minute hands of a tower clock like Big Ben in London are 2.79 m and 4.44 m long and have masses of 58.2 kg and 90 kg, respectively. Calculate the total rotational kinetic energy of the two hands about the axis of rotation.

The force of attraction due to gravity between two objects is F'. If the distance between the two objects doubles and the mass of one object triples, the new gravitational force between them will be - A. 0.5F' B. 0.75F' C. 1.5F' D. 2.5F'

What is the formula for velocity?

How much time does it take 9,560 joules of work with 860 watts of power

A tennis ball may leave the racket of a top player on the serve with a speed of 60.0 m/s. If the ball's mass is 0.0600 kg and it is in contact with the racket for 0.

Cells are known as the foundation of all life. How have these small structures changed our planet?