Which of these statements correctly describes a key difference between aerobic activity and anaerobic activity

Stephen can push with 200N of force on a couch. If the couch has a mass of 20 kg, how much acceleration will the couch have?

A truck is traveling north and a car is traveling west calculate momentum

Three oxygen isotopes

What is the magnitude of the momentum of a 3400 kg airplane traveling at a speed of 400 miles per hour? (Note that you need to convert speed to meters per second. A mile is 1600 meters.)

Daniel has a sample of pure copper. It's mass is 89.6 grams (g) and it's volume is 10 cubic centimeters (cm3) what is the density of the sample

Which of the following describes the flow of charges through a wire or a conductor?

What is the kinetic energy of a 2 kg snowball thrown through the air at 5 m/s?

A 5.00*105-kg subway train is brought to a stop from a speed of 0.500 m/s in 0.400 m by a large spring bumper at the end of its track. what is the force constant k of the spring

A moving object always has energy in its?

What is the volume of a box that is 12 cm long, 2 cm wide, and 3 cm high?