Which explains how winds cause surface currents? a. friction between the blowing air and the water drags the water along and creates surface currents. b. high-pressure air from the blowing winds presses down on the surface and creates currents. c. winds evaporate water from the surface and increase the salt content. as the salty water sinks, it creates surface currents. d. winds cool the surface water. as the water sinks, it creates surface currents.

First, launch the video below. you will be asked to use your knowledge of physics to predict the outcome of an experiment. then, close the video window and answer the question at right. you can watch the video again at any point. part a as in the video, we apply a charge +q to the half-shell that carries the electroscope. this time, we also apply a charge –q to the other half-shell. when we bring the two halves together, we observe that the electroscope discharges, just as in the video. what does the electroscope needle do when you separate the two half-shells again? view available hint(s) as in the video, we apply a charge + to the half-shell that carries the electroscope. this time, we also apply a charge – to the other half-shell. when we bring the two halves together, we observe that the electroscope discharges, just as in the video. what does the electroscope needle do when you separate the two half-shells again? it deflects more than it did at the end of the video. it deflects the same amount as at end of the video. it does not deflect at all. it deflects less than it did at the end of the video. submit

Which best represents the law of conservation of mass ?

One form of energy can be another type of energy. a. created to form b. transformed into c. destroyed and then created to form