The photon energy for light of wavelength 500 nm is approximately (Show your work).

A. 1.77 eV

B. 3.10 eV

C. 6.20 eV

D. 2.48 eV

E. 5.46 eV

What is an ethical vacuum?

State two applications of plane mirrors

A uniform ladder of length l and mass m1 rests against a frictionless wall. the ladder makes an angle θ with the horizontal.

In this case, lithium would be classified as a (n) A) atom. B) compound. C) ion. D) molecule.

How does energy affect a wave

Starting at its rightmost position, it takes 2 seconds for the pendulum of a grandfather clock to swing a horizontal distance of 18 inches from right to left and 2 seconds for the pendulum to swing back from left to right.

A question about a moral issue is answered by examining facts rather than opinions. is generally considered a scientific question. cannot be answered with scientific methods. cannot be debated through discussion.

Who is most likely to have a physiological age that is much younger than his or her actual age?

Inflammation happens when the mucous membranes cannot stop a pathogen. True False

If the diameter of the space station is 730 m, how many revolutions per minute are needed for the "artificial gravity" acceleration to be 9.80m/s2?