Two hours of moderate exercise every week can reduce the risk of developing heart disease by 30%.

What is a newton? a. the time it takes to move 1 kilogram b. the force it takes to change the speed of 1 kilogram by 1 m/s in 1 second c. the speed it takes to move 1 kilogram mass in one hour

Friction is a force that ___ or works against motion

Which type of wave makes up the visible spectrum of the electromagnetic spectrum? A. X-rays B. Infrared waves C. Ultraviolet waves D. Light waves

Why aren't ionic compounds are not able to conduct electricity as solids?

A car moving 60km/hr in one hour will travel.

Which of the following statement describes an actual orbit A. The planet Venus is a satellite of earth. B. Earth is a satellite of the planet Venus. C. Earth is a satellite of the moon. D. The planet Jupiter is a satellite of the sun.

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