A car starts from rest a stoplight and is traveling with a velocity of 10 m/s east in 20 seconds. What is the acceleration of the car?

Why is the energy that results from a roller coaster's position at the top of a hill referred to as potential energy?

Consider a one meter long horizontal pipe with a constant 100 cm^2 cross sectional area. water flows rightward into the pipe at x = 0 with flow velocity 02m/sec at every point within the pipe intake area. at x=1, the rightward flow rate is 0.192 m/sec. assume the water is a conserved quantity in the pipe, so there must be a leak (a sink) somewhere in the pipe. 1. compute net volumetric flow of the source if the system to be in equilibrium. 2. now assume the pipe in the problem has no leaks. compute the net volumetric rate of change for the system.

What is the measure of how much matter is in an object and that can be measured using a balance? a. height b. volume c. weight d. mass