A freefall ride is dropped from rest and falls for 2.1 seconds. Assume the top of the ride is the reference point.

-Calculate the distance the ride falls.

-Calculate the final velocity of the ride.

When a book falls from a shelf to the ground without anyone pushing on it, no work is done on the book. true or false

Achemistry student needs of 40ml diethylamine for an experiment. by consulting the crc handbook of chemistry and physics, the student discovers that the density of diethylamine is 0.7 . calculate the mass of diethylamine the student should weigh out. round your answer to significant digits.

Which types of electromagnetic waves have higher frequencies than the waves that make up ultraviolet light? check all that apply. radio waves infrared light microwaves gamma rays visible light x-rays