This is a mathematical equation.

This is a mathematical equation.

Explain how Einstein’s contribution to understanding the force between the earth and the moon differed from Newton’s. Include a brief statement of Einstein’s explanation in your answer.

A 75.0 kg astronaut is training for accelerations that he will experience upon reentry. He is placed in a centrifuge (r = 10.0 m) and spun at a constant angular velocity of 15.3 rpm. Answer the...

A pendulum bob has a mass of 30 g and hangs at the end of a string that measures 0.60 meters in length. The displacement angle is 13°. What would happen if the angle of displacement of the...

An aluminum cup contains 225 g of water and a 40-g copper stirrer, all at 27°C. A 438-g sample of silver at an initial temperature of 89°C is placed in the water. The stirrer is used to stir the mixture...

Why is it easier to pull an object up an incline rather than pushing?

Which is larger, the normal force or the force of friction?

a. 50 meters b. 500 meters c. 0.5 meters d. 5 meters

1. A ball is dropped from an unknown height and allowed to bounce until it comes to rest. Each bounce is lower than the previous one. Does the law of conservation of energy hold true for...

I'm really confused. This makes no sense. How does a north pole in a magnet point to the Earth's magnetic North in the Arctic when the same poles are supposed to repel

The weight of the car causes each tire to be slightly flattened on the bottom so that there is a surface area in contact with the road. The gauge pressure of the air in the tire is 2.23 105 Pa (32...

1. A 22 kg child on a sled slides down a 100 m long, 13 m high hill. If the coefficient of friction between the sled and the snow is .05, how fast is the child going at the bottom of the hill? 2...

A 1.5 kg book is held against the wall by an applied force. The applied force is 60° above the horizontal. Given that the static coefficient of friction between the block and the wall of 0.65, determine: a)...

The horizontal boom supporting the sign is of uniform construction and weighs 50 N. If the sign weighs 150 N, the angle between the force exerted by the hinge on the boom and the boom is approx...

A block of mass m is pulled by force F (originating from the top left corner of the block) in an upward direction with *angle θ above the horizontal, across a rough surface...

i need to know the velocity of the man that has ran a 5k in 32 minutes in meters/

Suppose that a spring has a natural length of 20 cm, and that 7 J of work is needed to stretch from a length of 30 cm to 50 cm. How far beyond its natural length will a force of 28 N keep the spring...

The reaction occurs at 900 mmHg and the formula for the reaction is: C2H5OH+O2===> CO2+H2O

In the investigation of the electronic absorption spectrum of a particular element, it is found that a photon having a wavelength of 500nm provides just enough energy to promote an electron...

By how much must their temperatures be raised in order for the brick and the can to have exactly the same height?