What is the approximate tangential speed of an object or orbiting earth with a radius of 1.8×10 squared 4 M and a period of 2.2×10 squared 4 s ?

Aray of light traveling parallel to the principal axis of a concave mirror will be reflected through the mirror's

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?

According to newton’s first law of motion, which force is expected to cause a body to accelerate?