A boy lifts a 30N dragon 2 meters above the ground. How much work did the boy do in the dragon? What is the work?

Identify the form of energy that matches each example. Energy from electromagnetic waves: Energy caused by changes in the structure of a nucleus: Energy resulting from movement and vibration of molecules: Energy an object has because of its

The temperature of the liquid in a container decreases as the liquid evaporates. Use kinetic theory to explain why.

A bicycle moves at a constant speed of 4m/s. How long will it take the bicyclist move 36m? Use this answer by graph

Witch of the following best describes fault line? A. a large body of salt water B. a solid sheet of ice and snow C. a raised peak In earths surface. D. a crack in earths crust

Nicholas sends 20.0 minutes ironing shirts with his 1800-watt irn. How many joules of energy were usedby the iron

Which of the following refers to the change in wavelength that occurs when an object moves toward or away from a source? A) Doppler effect B) Chromatic aberration C) Spectroscopy D) Wave theory of light

A handle or knob is fixed at free end of door. why?

What part of the thermosphere is electrically charged? the ionosphere the hemisphere the aurora sphere the troposphere

A 24 volt doorbell carries a current of 1/2 ampere. Calculate the resistance in the bell 1. 2. 3.

Are molecular compounds and covalent molecules the same thing?