The equation for density is mass divided by volume. the mass of a substance is changed so that it is made of fewer particles. If its volume is unchanged, how will its density change?

You run 100 meters in 50 seconds. Calculate your speed, label with m/s which means meter per second.

Select the correct answer. When a pendulum is held high and taut and then is released, the pendulum begins to swing. What's the correct order of the energy transformations in this example? (PE stands for potential energy.) A.

And again, choose the best statement below: a. When she pulls in her arms, the work she performs on them turns into increased rotational kinetic energy. b. When she pulls in her arms, her moment of inertia is conserved. c.

If 8.65 g of a tin - fluorine compound contains 5.28 g of tin, what is its empirical formula?

Which of the following is a high wave that crashes down onto the ocean floor? a. breaker b. tide c. upwelling d. deflection

A climber pulls herself 8 meters upwards with a force of 150 Newtons. If it takes her 16 seconds to cover the 8 meters, how much power is she using? A. 40 W B. 55 W C. 70 W D. 75 W

How is volume calculated directly and indirectly

Which state of matter has the greatest amount of particle movement?

An engineer wishes to design a hydraulic system that will transmit pressure of 10,000 pascals using a force of 15 newton's how are large an area should the input piston have

What is the meaning of heredity