Which is not an example of work being done?

a. Pushing a backpack to class.

b. Pulling a backpack to class.

c. Carrying a backpack to class.

d. Lifting a backpack from the floor to the table.

A car has a mass of 2000 kg and accelerates at 3.0 meters per second squared. What is the magnitude of the force acting on the car?

The speed of sound in air is 345 m/s. A tuning fork vibrates above the open end of a sound resonance tube. If sound waves have wavelengths 58-cm in the tube, what is the frequency (in Hertz) of the tuning fork

Which compounds are used in batteries? Check all that apply. sulfuric acid lithium hydroxide potassium hydroxide nitric acid ammonium hydroxide

What directly controls breathing, heartbeat, and muscle movement in the human body? A. electrical signals B. chemical reactions C. variations in temperature D. the heart

How the season affects the price quality and availability of vegetables?

Which of these is an example of temperature changing over time? A. a pan cools off on the stove B. a frozen dinner sits in the freezer C. a mug is at room temperature on the counter D. two glasses of water are filled from the tap and mixed together

A syrup added to an empty container with a mass of 115.25g. When 0.100 pint of syrup is added, the total mass of the container and syrup is 182.48g. Determine the density ... ?

MOST high schools teach biology, then chemistry, then physics. What do you see as some of the disadvantages of the traditional sequence to both students and teachers.

If you break a bar magnet in half, each half

If a forklift raises a 76-kg load a distance of 2.5 m, about how much work has it done?