In the graph why is the velocity positive at time 0.0 s?

Im so hopeless no one can answer my homework question and its due tommorow : ( How much pressure is exerted when air is being compressed?

Suppose the U. S. national debt is about $14 trillion. If payments were made at the rate of $3,500 per second, how many years would it take to pay off the debt, assuming no interest were charged?

Which of the following is the number 0.02204 written in scientific notation? O A. 2.240 x 10-3 O B. 2.204 x 10-1 O c. 2.204 x 102 OD. 2.204 x 102

Define terminal velocity

Multiply 0.00032 cm by 4.02 cm and express the answer in scientific notation

Protons and neutrons strongly attract when they

How far is Jupiter from the sun?

Steam moves into a cylinder of a steam engine at a constant pressure and does 2.34 J of work on a piston. The diameter of the piston is 3.4 cm and the piston travels 4.6cm. What is the pressure of the steam?

Identify each type of simple machine.

A car's speedometer reads 20 m/s after accelerating, from a standing start, for 25s. What was the magnitude of its acceleration?