Select the correct answer. Which of Newton's laws explains why your hands get red when you press them hard against a wall?
ОА.
Newton's law of gravity
OB.
Newton's first law of motion
O c.
Newton's second law of motion
OD.
Newton's third law of motion

Which graph represents motion with an object with positive velocity that is located at a position of 3 meters at a time of 0 seconds? a) a b) bb eliminate c) c d) d

Asolid cylinder and a cylindrical shell have the same mass, same radius, and turn on frictionless, horizontal axles. the cylindrical shell has light-weight spokes connecting the shell to the axle. a rope is wrapped around each cylinder and tied to blocks of equal masses that are held the same height above the ground. both blocks are released simultaneously. the ropes do not slip. which block hits the ground first? or is it a tie?

Mechanical energy is when the amount of kinetic and potential energies added together remains the same. conserved created lost