Observe o esquema: As mudanças de estado físico do gasoso para o líquido e do sólido para o líquido respectivamente é:
( ) fusão e solidificação.
( ) vaporização e sublimação.
( ) condensação e fusão.
( ) vaporização e solidificação

Avery hard rubber ball (m = 0.5 kg) is falling vertically at 4 m/s just before it bounces on the floor. the ball rebounds back at essentially the same speed. if the collision with the floor lasts 0.05 s, what is the average force exerted by the floor on the ball?

What is the single most important equation in all of physics?

During a medieval siege of a castle, the attacking army uses a trebuchet to hurl heavy stones at the castle walls. if the trebuchet launches the stones with a velocity of at an angle of 50.0°, (a) how long does it take the stone to hit the ground? (b) what is the maximum distance that the trebuchet can be from the castle wall to be in range? (c) how high will the stones go? show all your work.