Which definition is correct and uses only quantities rather than units? A. Density is mass per unit volume B. potential difference is energy per unit current C. Pressure is force per unit area D. speed is distance travelled per second

Two ice boats (one of mass m, one of mass 2m) hold a race on a frictionless, horizontal, frozen lake. Bath ice boats start at rest, and the wind exerts the same constant force on both iceboats.

A neutron star has about one and a half times the mass of our Sun but has collapsed to a radius of 10 kmkm. Part A What is the acceleration due to gravity on the surface of this star in terms of the free-fall acceleration at Earth's surface?

How the season affects the price quality and availability of vegetables?

The maximum wavelength of light required to eject an electron from zinc is 270nm. Calculate the threshold frequency of zinc.

How would a moving object in earth’s atmosphere be deflected as a result of earth’s rotation?

The equation e = mc2 relates mass and a. energy b. force c. work d. gravity

What should a scientist do to use scientific methods for determining the relative age of Earth's rocks? A be biased in opinion B disregard views of others C use creative ideas D prove that methods are non-testable

If a sample of gas is heated at a constant pressure what will happen to the volume of the gas

1. What is the speed of sound in air that has a temperature of 90.0 °C?

What effect does a doubling of the mass have upon the acceleration of the object? Be quantitative.