A lawnmower engine running for 20 min does 4,560,000 J of work. What is the power output of the engine? (Power: P = W/t)

3800 W

228,000 W

91,200,000 W

547,200,000 W

Citizens in the United States elect other citizens to make decisions about laws. What kind of government does this represent? A. Republic B. Theocracy C. Oligarchy D. Tyranny

Calculating heat gained or lost requires mass, specific heat, and a. change in heat. b. relative humidity. c. change in temperature. d. rate of temperature change.

Without the wheels, a bicycle frame has a mass of 8.47 kg. each of the wheels can be roughly modeled as a uniform solid disk with a mass of 0.820 kg and a radius of 0.343 m. find the kinetic energy of the whole bicycle when it is moving forward at 3.

What are the main agents of metamorfic rock?

Which type of device enables its users to see around corners? laser telescope microscope fiber optics

Tsunami waves are almost the same as ripples caused by throwing a rock into a pond. what is the major difference between the two?

A hot air balloon pilot wants the balloon to quickly rise several feet higher so it will be above some trees in the distance. Which best explains how the pilot can make the balloon rise? 1.

The density of pine is generally about 0.5 g/cm3. What is the mass of a 800 cm3 piece of pine Download pdf

The heat energy released or absorbed by a chemical reaction is generally determined by the difference between the energy that

A woman with a mass of * kg is standing on the rim of a large disk that is rotating at an angular velocity of 0.550 rev/s about an axis through its center. the disk has a mass of * kg and a radius of * m.