2. Which one of the following liquids is more suitable for making a simple barometer?​

The position of a crate sliding down a ramp is given by x=(0.05t^3) m, y=(1.7t^2) m, z=(6−0.85t^5/2) m, where t is in seconds. (a) determine the magnitude of the crate's velocity when t = 2 s. (b) determine the magnitude of the crate's acceleration when t = 2 s.

How many times did thomas edison mess up the light bulb

This is the number of complete movements of a wave per second.