A particle moves along the x-axis so that at time t > (or equal to) 0 its position is given by x (t) = 2t^3 - 21t^2 + 72t-53. At what time t is the particle at rest? ... ?

Find the gpe of a coffe mug with a mass of 0.3 that is on a counter top 1-m high above the ground

Define normal force in your own words

The fossil record suggests that the first animals to evolve lived A.) in the air B.) in swamps C.) on land D.) in the sea

A motorist travels at an average speed of 55.0 mi/hr for 4.25 hr. how far did he travel?

An object accelerates at 3 meters per second squared when a 10-newton (N) force is applied to it. Which force would cause this object to accelerate at 6 meters per second squared?

If you wanted to calculate the density of a baseball and you knew its mass and volume you would need the density formula and a (n) - A. calculator B. triple-beam balance, the formula for the volume of a sphere and a calculator. C.

If the temperature of the steam in a pwr is 315°c (600°f), what is the maximum efficiency obtainable from the power plant?

Which statement best describes the long-term effects of using non-renewable resources? A. Burning fossil fuels pollutes the environment. B. Fossil fuels burn clean, reducing air pollution. C.

If a man moves a large box that weighs 10 newtons 20 meters in 30 seconds, how much power was used.

Imagine you are digging a hole to the center of the earth. In which order would dig through them? A. inner core, outer core, upper mantle, lower mantle, crust B. crust, upper mantle, lower mantle, outer core, inner core C.