A block of mass 3.5 kg slides down a frictionless inclined plane of length 6.4 m that makes an angle of 30 degrees with the horizontal. if the block is released from rest at the top of the incline, what is its speed at the bottom

What will be the acceleration of a skydiver when air resistance builds up to 86% of her weight? assume the acceleration due to gravity is 10 m/s 2. answer in units of m/s 2?

The current in a single-loop circuit with one resistance R is 6.3 A. When an additional resistance of 3.4 Ω is inserted in series with R, the current drops to 4.72 A. What is R?

Seatbelts are necessary to prevent your body from flying out of a vehicle during a crash. why does your body not stop with the car?

Which of the following is an example of social facilitation? A. The football player who practices hard so he can be on the varsity team B. The Olympic bicycle racer who goes faster when he is racing against a person rather than the clock C.

What is the potential energy for and object with mass of 15 Kg and 20 m above the ground?

Which elements would you expect to be similar to technetium

2. Weight is a force from gravity pulling down on any object with mass. True False

A 0.9 kg football is thrown with a velocity of 22.0 m/s to the right. A stationary receiver catches the ball and brings it to rest in 0.06 seconds. What is the force exerted on the receiver?

water waves carry particles of water in the same direction that the wave is traveling. True or False?

Two objects of different masses are sitting on different balance scales. Object A has a greater mass than object B. How will the weights of the objects compare to each other?