⦁ Of the following answer choices which provides the best match between an established energy type & its use or traits? a. Chemical energy: radiation c. Potential energy: stored energy b. Kinetic energy: chemical bonds d. Mechanical energy: energy waves

Potential energy: stored energy

Explanation:

Energy is the capacity to do work. It exists in various forms which can be converted from one form to another. It is measured in Joules (J).

The energy possessed by an object at rest is called potential energy. It is a form of mechanical energy. It is a stored energy which can be converted to kinetic energy when the object start to move.

The best match between an established energy type and its use or trait as given in the question is: Potential energy: stored energy

answer: the correct answer id option(d).

explanation:

snell's law refraction:

the angle of refraction =

the angle of incidence =

refractive index of air = = 1

refractive index of glycerol = 1.47

from the given options, the most closest answer to 63.72° is 65° of option (d).

answer: 2×10^-2kg

explanation: density= mass per volume

vol=mass/density

converting to s.i units we have;

3÷1000kg = 0.003

1.5÷100m = 0.15

0.003/0.15 = 0.02kg