A bird has flown 850 km south for the winter when he realizes he as to go back because it is still summer. After traveling 320 km north, what is the bird's distance traveled?

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

Light traveling in water, nwater = 1.33, strikes a plastic block at an angle of incidence of 51.4°; part of the beam is reflected and part is refracted. if the index of refraction of the plastic is 2.0, what is the angle made by the reflected and refracted beams?

For waves in the ocean, the medium of the waves is a. air b. water c. energy d. a passing boat