Aradio antenna broadcasts a 1.0 mhz radio wave with 30 kw of power. assume that the radiation is emitted uniformly in all directions. part a what is the wave's intensity 33 km from the antenna? express your answer in watts per meter squared. ii = nothing w/m2 request answer part b what is the electric field amplitude at this distance? express your answer in volts per meter. ee = nothing v/m

Determine the amount of work done when a crane lifts a 100-n block form 2m above the ground to 6m above the ground

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?

Diamond will scratch quartz. true or false