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

Which example is NOT a part of the electromagnetic spectrum? A) microwaves B) radio waves C) electricity D) purple light

What is the term for the total radiation that is reflected by a surface?

Astronomers are getting information about dark energy from a the existence of dark matter b the number of stars in the sky c the fact that gases are in galaxies d the shape of galaxies in cluster galaxies

You give a crate a push to set it in motion. After the push is over, the crate skids to a stop on a rough, level floor. Describe the energy changes after the push (with the crate as the system).

True or false the measurement 82 km/h southeast is. A measurement of acceleration

Which features involve compression? Select the three correct answers. A. Reverse faults B. Anticlines C. Folded mountains D. Normal faults E. Monoclines

You place a cup of 210 degrees F coffee on a table in a room that is 68 degrees F, and 10 minutes later, it is 200 degrees F. Approximately how long will it be before the coffee is 180 degrees F? Use Newton's law of cooling:

What change occurs to the mass of an object when an unbalanced force is applied to it? A. The mass increases. B. The mass decreases. C. The mass remains the same. D. The mass reduces to zero. E. The mass changes by an indeterminate amount.

The equilibrium price will rise, but equilibrium quantity may increase, decrease, or stay the same if a. demand increases and supply decreases. b. demand increases and supply increases. c. demand decreases and supply increases. d.

The nearest large galaxy to our own is about 2.5 million light-years away. how many meters is that