What types of energy does a ball rolling down a hill have?

Balance this chemical equation Fe (s) + 02 (g) - - - Fe0 (s)

As an array/module of cells gets larger in surface area, what happens to the amount of electricity that it can produce?

Explain the scientific meaning of the word random

If 41.5 mol of an ideal gas occupies 86.5 L at 27.00 °C, what is the pressure of the gas?

The large space telescope that has been placed into an earth orbit has an aperture diameter of 2.40 meters. what angular resolution will this telescope achieve for visible light of wavelength λ = 4.80 * 10-7 m?

According to the equation for the Balmer line spectrum of hydrogen, a value of n = 3 gives a red spectral line at 656.3 nm, a value of n = 4 gives a green line at 486.1 nm, and a value of n = 5 gives a blue line at 434.0 nm.

Technician A says that gaskets are used to fill a space or gap between two objects to prevent leakage from occurring.

The density of ocean water increases when it a. joins the Gulf Stream. c. gets warmer. b. gets colder.

a) For a given material, would you expect the surface energy to be greater than, the same as, or less than the grain boundary energy?

Determine the stopping distances for a car with an initial speed of 95 km/h and human reaction time of 1.0 s for the following accelerations.