A cross-country runner accelerates from 4 m/s to 7 m/s over the course of 5 seconds. What is the runner's average rate of acceleration? A. 0.3 m/s/s B. 0.6 m/s/s C. 1.4 m/s/s D. 2.2 m/s/s

What is a derived physical quantity? Name three derived physical quantities, and for each, give its S. I. units and its U. S. Customary units.

A researcher favors scientific work that states that his favorite type of exercise is the most beneficial and ignores work that says other types of exercise might be more beneficial.

In which of these cases is NO work done on the football? A) You lift a football off the ground. B) You raise a football over your head. C) You carry a football across a field. D) You push a football across the floor.

How does the use of fertilizer affect the nutrogen cycle?

T or f in a pinch, a pile of bricks or water pipes can be used in place of jack stands when using hydraulic jacks.

The Hubble Space Telescope (HST) orbits 569,000m above Earth's surface. Given that Earth's mass is 5.97 * 10^24 kg and its radius is 6.38 * 10^6 m, what is HST's tangential speed?

What do safety features in a car do to protect us in a collision

Chemical sediments that result from the evaporation of water are

A college student is working on her physics homework in her dorm room. her room contains a total of 6.0*1026 gas molecules. as she works, her body is converting chemical energy into thermal energy at a rate of 125 w.

A uniform, thin, solid door has height 2.20 m, width 0.870 m, and mass 23.0 kg. (a) find its moment of inertia for rotation on its hinges. (b) is any piece of data unnecessary