Alight ray traveling in air enters a second medium and its speed slows to 1.71 × 108 meters per second. what is the absolute index of refraction of the second medium?

Alfred pushes on a heavy box, but cannot move it. the box has a lot of inertia motion friction gravity

Rohit is trying to tune an instrument

A3030 cmcm wrench is used to loosen a bolt with a force applied 0.30.3 mm from the bolt. it takes 6060 nn to loosen the bolt when the force is applied perpendicular to the wrench. how much force would it take if the force was applied at a 3030 degree angle from perpendicular? a 3030 cmcm wrench is used to loosen a bolt with a force applied 0.30.3 mm from the bolt. it takes 6060 nn to loosen the bolt when the force is applied perpendicular to the wrench. how much force would it take if the force was applied at a 3030 degree angle from perpendicular?