Awatermelon is dropped from the top of a 80m tall building. we want to find the velocity of the watermelon after it falls for 1.35s. we can ignore air resistance. kinematics formula would be most to solve for the target unknown? answer choices in picture.

How can waves travel through ground?

Acentrifuge in a medical laboratory rotates at an angular speed of 3,700 rev/min. when switched off, it rotates through 54.0 revolutions before coming to rest. find the constant angular acceleration (in rad/s2) of the centrifuge. your response is within 10% of the correct value. this may be due to roundoff error, or you could have a mistake in your calculation. carry out all intermediate results to at least four-digit accuracy to minimize roundoff error. rad/s2

What energy transformations occur each time the skateboarder rolls up the ramp?