What is the angular speed (in rpm) with which the Earth spins on its axis?

How many nanoseconds does it take light to travel a distance of 3.80 km in vacuum? Express your answer numerically in nanoseconds.

In an electrically neutral atom of any element, there are equal numbers of A) protons and neutrons. B) electrons and protons. C) electrons and neutrons. D) atomic number and atomic mass

Explain how applied heat works between and at critical temperatures

What is likely happening at the boundary between the Nazca plate and the Pacific plate?

How are mitosis and meiosis similar? A. Both are forms of cell division that produce parent cells. B. Both produce gametes as a product of cell division. C. Both produce cells that have only half of the parent's genetic material. D.

If two parallel light rays hit a plane mirror, what will be their orientation to one another after they reflect? a. they will remain parallel. b. they will be perpendicular. c. it depends on the initial spacing between the light rays. d.

To extend the electrical system between the main panel and the secondary panel, the electricians used A. Receptacles B. Circuit breakers. C. feeders. D. insulators

Men in the age of 18-34 years need to be able to run a marathon in 3 hours and 10 minutes to qualify for the Boston Marathon. How many seconds is this? Show your work.

What is the center of our solar system?

A - 4.0-µC charge is located 0.45 m to the left of a + 6.0-µC charge. What is the magnitude and direction (to the right or to the left) of the electrostatic force on the positive charge?