A train going 60 m/s hits the brakes. It takes the train 1 minute 30 seconds to stop. What is the train’s acceleration?

Aball is thrown straight up into the air with a speed of 21 m/s. if the ball has a mass of 0.1 kg, how high does the ball go? acceleration due to gravity is g = 9.8 m/s^2. a. 22.5 m b. 20.0 m c. 25.0 m d. 17.5 m

Which fators influence ocean currents

Hydrogen and helium are both members of?