Only the component of force perpendicular to the direction motion does work. true or false

In a cold winters day, if you left a cup of water sitting outside, it could freeze. Heat is transferred out of the water. Describe the behavior of the water molecules and how temperature is affected. Enter your answer in the space provided.

Water is pumped from a lower reservoir to a higher reservoir by a pump that provides 20 kW of shaft power. The free surface of the upper reservoir is 45 m higher than that of the lower reservoir. If the flow rate of water is measured to be 0.

Which is the fundmental law of energy?

What is the new weight of a 10kg object on a planet that has twice the earths mass. (assume that the radius of the planet is the same as earths)

Which statement is true of the particles that make up a substance? A.) Particles in a solid have more energy than particles in a gas. B.) Particles in a gas have more energy than particles in a liquid. C.

The density of uranium is 18.8 g/cm3. part a what is this value in kilograms per cubic meter?

What name is given to the variable we plot on the x-axis? A. The dependent variable B. The independent variable c. The linear variable D. The inverse variable

What force is required to accelerate a body with the mass of 15 kilograms at a rate of 8m/s2?

Indicate whether the statement is true or false. A scientific fact is something that is absolute and unchanging.

Show the formula and caculate the speed of a car that traveled 100 km in 2 hours