if a ball is dropped from a height of 19.6m, what is the velocity with which the ball hits the ground?

During nuclear fission and fusion, matter that seems to disappear is actually converted into massenergyvolumenuclei.

Why is the condition of a rock an important factor

In a car, 75 percent of the chemical energy of gasoline is lost as thermal energy. If the gasoline contains 1,000 kilojoules of energy, how much of that energy is used to actually move the car? Record your answer in kilojoules.

How many horsepower does a 1100 watt microwave have

A 1400 kg vehicle travelling at 22 m/s slows at a constant rate to 4.5 m/s in 6.75 s. What was the net force acting on the car during this time?

Under what condition (s) will an object be in equilibrium? Notice that equilibrium in physics has a broader definition. (A) Only if it is moving with constant velocity. (B) Only if it is at rest.

If a pressure gauge measure an increase in 3*10^ (5) Pa on an area of 0.7 m^2, calculate the increase in the force applied to the area?

Which of the following is an example of potential rather than kinetic energy? a. water rushing over Niagara Falls b. a molecule of glucose c. a crawling beetle foraging for food d. light flashes emitted by a firefly

If a force of 15 newtons [N] is applied to a surface and the pressure is measured as 4,000 pascals [Pa], what is the area of the surface in units of square milimeters [mm2 ]?

An engineer has the task of producing an aluminum alloy with a density of 3.0 grams per cubic centimeter. She comes up with the perfect alloy and saves a sample of it. Which mass and volume measurements correspond to this sample? 7 g and 2.