1. A compact car, mass of 725 kg, is moving at 100m/s.

a. Find its momentum.

b. At what velocity is the momentum of a larger car (than the one above) with a mass of 2175 kg, equal to that of the smaller car?

A 1200 kg car surrounds an 80 meter radius curve. If the coefficient of friction between the tires and the road is 0.65, what maximum speed should the car have to not leave the curve to : a. 23 m / s b. 10 mph c. 62 km / h d. 6.3 m / s

Why can't we breath under water?

Water has a very high specific heat, Why does this make it a very good substance for use in cooling systems of automobiles?

Kate gathered three boxes of the same size made of different materials: glass, clear plastic, and aluminum painted black. She placed them on a windowsill in the sun for an hour and then measured the warmth of the air in each box.

You push a block to the top of an inclined plane. The mechanical advantage of the plane is 5. The inclined plane is 10 meters long. What is the height of the inclined plane? 10 m 50 m 2 m 0.5 m

Drag each tile to the correct box. Arrange the objects in order from least to greatest potential energy. Assume that gravity is constant. (Use PE = m * g * h.) 1.) a 15-kilogram stone found at a height of 3 meters 2.

On a cold winters da, y, If you left a drink setting outside, it could freeze. Explain why in a complete sentence Hint-Consider th kinetic theory of heat that explains that temperature is directly related to kinetic energy of atoms.

perature is 0◦F. How much taller is the building when the temperature is 107◦F? The linear expansion coefficient of steel is 1.1 * 10-5 (◦C) - 1.

A weightlifter lifted 800 Newtons to a height of 2.5 meters. What is the power output if this was done in 1.22 seconds?

What conditions must be present for a translational and rotational equilibrium of a rigid body?