Which states the law of conservation of energy?
a.
energy cannot be created or destroyed, but it can be converted or changed into different forms.
b.
energy can be created or destroyed, and it can be converted or changed into different forms.
c.
energy cannot be created or destroyed, nor can it be converted or changed into different forms.
d.
energy can be created or destroyed, but it can not be converted or changed into different forms.

Astudent is performing an experiment comparing sound and light waves. the student gathers the following data. what conclusion does the student most likely make based on this data? light waves always travel the same speed; however, the speed of sound is determined by the medium that it travels through. all sound waves always have the same energy, so the temperature of the medium does not affect wave speed. light needs to vibrate particles, so it travels fastest in tightly packed solids, while sound does not need a medium, so it travels fastest in a gas. tightly packed particles in solids slow down the light waves; however, sound waves make particles bounce into each other, so they travel faster in solids.

(1 point) match the differential equations and their vector valued function solutions. you may wish to multiply at least one solution out fully, to make sure that you know how to do it. you can get the other answers quickly by process of elimination and just multiply out one row element.

This is for my 8th grade science class, i really don’t understand. can someone me? , lol.