PLEASE HELP What is energy?
A.
a change that appears in an object when force is applied
B.
the property of a body that gives it mass
C.
the amount of heat produced by a body
D.
the ability of an object to undergo change
E.
the ability of a body to move

Achemistry student needs of 40ml diethylamine for an experiment. by consulting the crc handbook of chemistry and physics, the student discovers that the density of diethylamine is 0.7 . calculate the mass of diethylamine the student should weigh out. round your answer to significant digits.

Does anyone have the answers to online physics course plato course physics, semester a v3.0

The astronauts on the space shuttle flights experienced an acceleration of 29 m/s2 (about 3 "g's") during lift-off. what upward force must the astronaut's seat apply to the astronaut in order to cause this acceleration? assume the astronaut's mass is 70 kg, and compute this force when the acceleration is near the earth's surface so their weight equals latex: mg m g .