PLS ANSWER I NEED HELP How is an electromagnetic wave (such as a radio wave) different from an ocean wave?

A) An electromagnetic wave cannot travel through empty space, but an ocean wave can.

B) An electromagnetic wave does not require a physical medium to travel through.

C) An electromagnetic wave is a longitudinal wave and an ocean wave is an oblong wave.

D) An electromagnetic wave travels more slowly than an ocean wave.

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?

For this car, predict the shape of a graph that shows distance (x) versus time (t). note that time is the independent variable and will be on the bottom axis. need asap

In which type of system is power held solely by the central government and not shared with regional governments? group of answer choices federal unitary confederate oligarchic