A hydrogen line in a star's spectrum has a frequency of 6.17x10^14 Hz when stationary. In Rigel's spectrum, is it shifted downward by 4.26x10^10 Hz. What is Rigel's velocity relative to us? (Unit=m/s)

The a992 steel rod bc has a diameter of 50 mm and is used as a strut to support the beam. determine the maximum intensity w of the uniform distributed load that can be applied to the beam without risk of causing the strut to buckle. take f.s. = 2 against bucklin

The graph represents the distance a car travels over time while on the highway. which statement about the car's trip is accurate? a) the car does not move over time. b) the car travels at a constant velocity. c) the car's velocity increases constantly over time. d) the car's velocity decreases constantly over time.

Carbon 14 is a naturally occurring stable