A rock is tossed off the top of a balcony from rest. The balcony is 9 meters high. How long does it take to hit the ground? A. 1.4s
B. 1.6s
C. 1.8s
D. 2.8s

When a light bulb shines, it gives off light energy and energy. a. heat b. potential c. chemical d. electrical

During the experiment if you could triple the breakaway magnetic force with all other quantities left unchanged, what is the new value for the critical velocity if it was v0 (initial velocity), initially? (b) now if you halved the radius with all other quantities left unchanged, what is the new critical velocity if it was v0 (initial velocity), initially? (c) if during the experiment, critical velocity quadrupled with all other quantities left unchanged, what is the new breakaway force if its magnitude was initially f0,?

Suppose a soccer ball is kicked from the ground at an angle 20.0º above the horizontal at 8.00 m/s. the y-velocity is determined to be 2.74 m/s. how long will the ball be in the air? assume the ball lands at the same height at which it was kicked.