How high must a 20kg box be lifted to give it 784j of a potential energy

Which transition by an electron will release the greatest amount of energy? oa ob oc od

What is the measure of how much matter is in an object and that can be measured using a balance? a. height b. volume c. weight d. mass

This chart shows characteristics of three different types of waves. which statement is best supported by the information in the chart? wave x and wave y are mechanical waves, and wave z is an electromagnetic wave. wave x and wave y are electromagnetic waves, and wave z is a mechanical wave. wave x and wave z are electromagnetic waves, and wave y is a mechanical wave. wave x and wave z are mechanical waves, and wave y is an electromagnetic wave.