Alan leaves Los Angeles at 8:00 a. m. to drive to San Francisco, 400 mi away. He travels at a steady 45.0 mph . Beth leaves Los Angeles at 9:00 a. m. and drives a steady 55.0 mph . a. Who gets to San Francisco first?
b. How long does the first to arrive have to wait for the second?

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?

Which form of cell division creates the sperm and egg, resulting in half of the chromosomes as the other cells?

Ashot putter releases the shot some distance above the level ground with a velocity of 12.0 m/s, 51.0 ∘above the horizontal. the shot hits the ground 2.08 s later. you can ignore air resistance. how far did she throw the shot?