A 400 kg object is sitting at rest at the top of a hill that is 30.0m high and 80.0m long measured along the hill. If there is no friction, how fast will the object be going at the bottom of the hill?

A 100 kg individual consumes 1200 kcal of food energy a day. Calculate (a) the altitude change, in m, if the food energy content was converted entirely into lifting the indi- vidual under normal earth gravity.

Red, blue, and green are called a __ __ __ __ __ __ __ primary colors because when they are added together, they form all of the colors of the spectrum.

In the pulley system shown below, a 360 N weight is slowly lifted. Assuming the system is 100% efficient and each pulley is weightless, what is the minimum input force needed to lift the weight? Rope Pile L = 16.74m A. 61 N B. 121 N C. 181 N D.

The gravitational attraction between two objects will what if the objects move farther apart?

Which of the following statements correctly describes the movement of water? Movement of Water From To Amount (km3/year) atmosphere ocean 398,000 atmosphere land 107,000 ocean atmosphere 434,000 land atmosphere 50,000 A) More water evaporates from

I to fall in love with someone or to at least get a boyfriend

Is rain falling a contact or noncontact force

How does a concave lens differ from a convex lens?

Which object has the greatest gravitational attraction?

Masa samochodu wynosi 2000 kg. Siła parcia wywierana przez cztery koła na powierzchnię szosy wynosi: A. 2000 N B. 20000 N C. 500 N D. 5000 N szybko plis