According to newtons first law, if no net force acts on a object, the object continues in motion with?

Explain how light travels

How does heat conduction work

The medium of a mechanical wave is the matter through wich it travels? tru or false

In general terms, the efficiency of a system can be thought of as the output per unit input. Which of the expressions is a good mathematical representation of efficiency e of any heat engine?

What is the correlation between wire guage and electromagnet strength

A car travels at 40km/hr for 2 hours and at 55 km/hr for 2 hours. How far has the car traveled? What is its average velocity?

The comparison of work output to work input is called the mechanical. advantage ... a. true. b. false

Bob, Jill, Kim, and Steve measure an object's length, density, mass, and brightness, respectively. Which student must derive a unit of measurement? A. Bob B. Jill C. Kim D. Steve

Scientist have changed the model of the atom. what experimental evidence led them to change from the previous model.

A 20 kg mass with an initial velocity of 10 m/s slides to a stop in 2 meters. What is the net work down on the mass? a.) 250 J b.) 500 J c.) 120 J d.) 20 J e.) None of the above