The star Sirius is moving toward us at 7600 m/s. A line in its spectrum has a frequency of 5.71x10^14 Hz when stationary. How much will the frequency of the line be shifted?
(Answer is x10^10 Hz.)

List one type of erosion and describe how it happens?

Next a skier is pulled by a tow rope up a frictionless ski slope that makes an angle of 15 with the horizontal. the rope moves parallel to the slope with a constant speed of 0.69 m/s. the force of the rope does 800 3 of work on the skier as the skier moves a distance of 8.4 m up the incline. (a) if the rope moved with a constant speed of 2.2 m/s how much work would the force of the rope do on the skier as the skler moved a distance of 8.4 m up the incline? at what rate is the force of the rope doing work on the skier when the rope moves with a speed of (b) 0.69 m/s and (c) 2.2 m/s?

Is the time in tennessee the same as florida