A0.145 kg baseball is thrown with a velocity of 40 m/s. what is the baseball's momentum?

Astronomers discover an exoplanet (a planet of a star other than the sun) that has an orbital period of 3.87 earth years in its circular orbit around its sun, which is a star with a measured mass of 3.59 x 1030 kg. find the radius of the exoplanet's orbit.

Asher cycles 12 miles in 16 hours. what is his speed?

What distance does a car travel as its speed changes from 0 to 20 m/s in 17 s at constant acceleration?