Doublehranch7823 Doublehranch7823

20-02-2024
Physics

contestada

What speed should a galaxy move with respect to us so that the sodium line at 589.0 nm is observed at 589.6 nm?
a) 30 km/s
b) 60 km/s
c) 90 km/s
d) 120 km/s

Respuesta :

Otras preguntas

Select the approximate values of x that are solutions to f(x) = 0, where f(x) = -9x2 + 4x + 9.

What word describes all of the processes that happen in a living thing?

Cite examples of organisms that reproduce sexually and those that reproduce asexually

what is the sum of 1/4 and 1/7

can someone help me with this problem

Line RS bisects PQ at point R. Find RQ if PQ = 4 3/4

during a recent regular season, a taxas ranger baseball player had 126 hits and was a bat 399 times. write a fraction in simplest form to represent the ratio o

If light moves from left to right along the x-axis, then the electric field line vibrates along what?? :(

Describe the wavelength of a longitudinal wave.

“A horse pulls on a cart. By Newton’s third law of motion, the cart pulls back on the horse with a force equal to that exerted by the horse on the cart. The su