A 2.0 kg snowball is thrown at 18 m/s . It hits and sticks to a kg package sitting on a porch How fast will they now be moving? Show all your work, assume the system is closed.

What is the temperature in degrees celsius of a substance with a tempature of 49k

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?

The photo above shows oil and vinegar in a pitcher. the top make a claim about about the density of the vinegar compared to the density of the oil summarize the evidence to support the claim and explain your reasoning