A tin can has a radius of 0.0410 m, and is 0.185 m high. if the air is removed from inside the can, how much force will the outside air(at 1 atm) exert on the bottle?(unit=N) PLEASE HELP ME I HAVE BEEN STUCK ON THIS QUESTION FOR A MONTH

Ahockey player of mass 82 kg is traveling north with a velocity of 4.1 meters per second he collides with the 76 kg player traveling east at 3.4 meters per second if the two players locked together momentarily in what direction will they be going immediately after the collision how fast will they be moving

The first law of thermodynamics states that heat added to a system is neither created nor destroyed but is as it changes into other forms of energy.

You are driving to the grocery store at 20 m/s. you are 110m from an intersection when the traffic light turns red. assume that your reaction time is 0.50s and that your car brakes with constant acceleration. how far are you from the intersection when you begin to apply the brakes? what acceleration will bring you to rest right at the intersection? how long does it take you to stop after the light changes? the known values: vi=20m/s xi=110m t=.50s vf=0m/s xf=0m a=?