If you do 1000j of work on a system and remove 500j of heat from it, what is the change in its internal energy

if force is applied to a body is zero then what happen to the state of body a. rest b. motion c. maybe rest or motion d. none

Which of these best explains why people on Earth cannot see the entire shape of the Milky Way A Earth is a part of this galaxy. B Many more stars exist outside the galaxy. C The stars in the center of the galaxy are extremely small.

When a straw is placed in a glass of water looks bent, which behavior of wave does it describe? a. refraction b. diffraction c. reflection

The earth's magnetic field deflects the flow of current from: A) the moon B) Saturn C) the sun D) the center of the earth

Which is least likely to cause a landslide? A. The force of gravity B. The growth of vegetation C. An increase in the slope of a hill D. Saturation of the ground by water

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.

What must be your car's average speed in order to travel 235km in 3.25 hours?