Children in a tree house lift a small dog in a basket 4.00 m up to their house. If it takes 187 J of work to do this, what is the combined mass of the dog and basket?

Which type of electromagnetic wave is used in remote controls to change chanels? A) Gamma B) Radio C) Microwave D) Infrared

In the 1660s, who discovered that color is a direct function of light by passing sunlight through a prism and observing the bands of spectrum of colors?

A 28.6-kg sled is being pulled across a horizontal surface at a constant velocity. The pulling force has a magnitude of 77.3 N and is directed at an angle of 24 ° above the horizontal. Determine the coefficient of kinetic friction.

A 2.4-m-diameter merry-go-round with a mass of 270 kg is spinning at 20 rpm. John runs around the merry-go-round at 5.0 m/s, in the same direction that it is turning, and jumps onto the outer edge. John's mass is 34 kg.

A garden hose with an inside diameter of 0.75 inches is used to fill a round swimming pool 3.0 m in diameter. How many hours will it take to fill the pool to a depth of 1.0 m if water flows from the hose at a speed of 0.

There are four people in the car, the driver slams on the gas pedal and all the passengers heads hit the headrest behind them when the car accelerates forward.

A car travels 15 miles in 30 minutes. Calculate its average speed.

What two factors affect the strength of a gravitational attraction? How does each effect the strength

A spring is stretched 2 cm when a mass of 40 grams is hung from it what is the spring constant of the spring

Can a red nova hurt earth?