A steam engine absorbs

J and expels

J as heat, how much work is done?

If typical kitchen appliance uses 450 watts of power per day, about how many kilowatt hours will it use in 30 days? A. 14,000 kilowatt hours B. 360 kilowatt hours C. 13 kilowatt hours D. 11 kilowatt hours E. 320 kilowatt hours

You have a large flashlight that takes 4 D-cell batteries, each with a voltage of 1.5 volts. If the current in the flashlight is 2.0 amps, what is the resistance?

An object that gives off electromagnetic waves based on it's temperature demonstrates which phenomenon

Which is heavier? A. 1 kilogram of steel B. 1 kilogram of feathers C. 1 kilogram of paper D. 1 kilogram of rocks E. 1 kilogram of anything else

The matter in the medium moves perpendicular to a transverse wave. True or False

A tree is standing in the middle of a meadow. As you watch, the wind begins to blow and the tree bends. Which statement best explains how you could tell that a net force was acting on the tree? OA) The tree had momentum.

A 5.1 kg black bear cub weighs 49.98 N. The cub is carried by its mother up into the safety of a white pine tree.

Which location is associated with persistent upwelling of cold water to the ocean surface?

What type of electromagnetic radiation is associated with the peaks in this spectrum chem 237?

Why is it necessary to eliminate absolutely all invasive fire ant colonies to eradicate the invasive population? a. Every colony has a major impact on native flora and fauna. b. Because the last colony found is the one housing the invasion's queen.