What is always true about the total amount of oxygen and carbon dioxide in the test tube?

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.

What determines the amount of inertia an object has

Which of the following bonds would be most polar? a. c-i b. c-br c. c-cl d. c-f e. c-o