An object has an initial velocity of 15 m/s. how long must it accelerate at a constant rate of 3 m/s before its final velocity is
equal to twice its initial velocity?

Aball tossed vertically upward from the ground next to a building passes the bottom of a window 1.8 s after being tossed and passes the top of the window 0.20 s later. the window is 2.0 m high from top to bottom. what was the ball's initial velocity? the unit vector j^ is directed upward. how far is the bottom of the window from the launch position? how high does the ball rise above the launch position?

Awalk up the phase change graph worksheet

If a balloon is taken outside on a very cold day, what will occur?