Imagine you are sitting on a sled and someone is about to push you down a hill. which statement is accurate?
forces acting on the sled are paired with the force of friction only.
forces acting on the sled are paired with unequal and opposite forces. forces acting on the sled are paired with equal and opposite forces.
forces acting on the sled are paired with the force of gravity only.

In physics the desire of an object to keep doing what it is doing is termed?

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.

Iwill give 30 points to whoever answers ! what is the formula for actual mechanical advantage and ideal mechanical advantage?