Aboulder on the mythical planet mongo drops off a cliff and falls from rest 1000 m in 10.0 s. (a) what's the initial speed of the boulder?
(b) determine the acceleration due to gravity on mongo. ignore friction.

Amachine, modeled as a simple spring-mass system, oscillates in simple harmonic motion. its acceleration is measured to have an amplitude of 5,000 mm/s with a fre- quency of 10 hz. compute the maximum displacement the machine undergoes during this oscillation.

Which of the following explains why it took so long for the public to accept the negative health effects of smoking? a)people were waiting for counter reasons, and those were presented. b)scientists had not completely finalized their results, which took 30 years. c)cigarettes were cheaply available and media channels were very inefficient. d)cigarette manufacturers were trying hard to bring an alternative into the market

The image shows a pendulum in simple harmonic motion the pendulum starts at a and swing to e