What is the energy of a photon with a frequency of 2.2 * 1016 Hz? Planck's constant is 6.63 * 10-34 J•s.

What is Reverend Hail doing at the jail?

f 720-nm and 620-nm light passes through two slits 0.68 mm apart, how far apart are the second-order fringes for these two wavelengths on a screen 1.0 m away

What type of simple machine will allow you to change the direction of the resistance? A. a ramp B. a lever C. a pulley D. a wedge

How fast must a projectile moving horizontally travel so that the curve it follows matches the curve of Earth?

The wavelength of light visible to the human eye is on the order of 5 x 10-7 m. if the speed of light in air is 3 x 108 m/s, find the frequency of the lightwave.

When you look into a clear pond, a fish may appear to be in a different position than it actually is. What is this caused by? A. diffraction B. dispersion C. refraction D. reflection,

How long would it take to drive to alpha centauri (4.4 light-years away) ?

A type of fault where the hanging wall slides upward

How was dyslexia treated in the past and how is dyslexia treated today?

The work of Charles Kuen Kao is likely to have been most influenced by the work of which of the following scientists? A. Galileo Galilei B. Christian Doppler C. Sir Isaac Newton D. Ibn al-Haytham