What is the upper temperature range for stars?
a. 1,000,000 k
b. 23,000 degrees c
c. 40,000 k
d. 2,000,000 degrees c

Waves that cause the most damage during an earthquake are a. surface waves c. s waves b. p waves d. ocean waves

Write the function getkthdigit(n, k) that takes a possibly-negative int n and a non-negative int k, and returns the kth digit of n, starting from 0, counting from the right

Amichelson interferometer operating at a 600 nm wavelength has a 3.02-cm-long glass cell in one arm. to begin, the air is pumped out of the cell and mirror m2 is adjusted to produce a bright spot at the center of the interference pattern. then a valve is opened and air is slowly admitted into the cell. the index of refraction of air at 1.00 atm pressure is 1.00028.how many bright-dark-bright fringe shifts are observed as the cell fills with air?