Choose all the answers that apply. according to newton's first law of motion: objects at rest will remain at rest unless acted upon by an outside force an increase in mass will cause an increase in inertia the greater the magnitude of force, the faster the acceleration objects in motion will remain in motion unless acted upon by an outside force every action has an equal and opposite reaction there can be more than one

Which of the following forces require physical contact? tension air resistance friction magnetic force applied force

Consider a small frictionless puck perched at the top of a fixed sphere of radius r. if the puck is given a tiny nudge so that it begins to slide down, through what vertical height will it descend before it leaves the surface of the sphere? [hint: use conservation of energy to find the puck's speed as a func e conservation of energy to find the puck's speed as a function of its height at what value of this normal force does the puck leave the sphere? ] here on the puck.

A15 ohm resistor and a 25 ohm resistor are connected in parallel to a 60 volt battery. what is the power used by each device