A certain violet light has a wavelength of 4.12 x 10^-7 m. What is the frequency of light? c= wv (where c=3 x10^-8)What is the energy
amount of this quantum of light? E=hy (where h=6.626 x 10^-34)

Which position represents spring in the southern hemisphere? a) b) c) d)

The comparison of the number of atoms in a copper coin the size of a penny with the number of people on earth is made to illustrate which of the following? a. that atoms are indivisible b. that atoms are very small c. that atoms are very large d. that in a copper penny, there is one atom for every person on earth

Which of the following best describes technology a. something created for only scientists to use b.the method of thinking that scientists use. c.the application of engineering to create useful products. c. a scientific idea