A physics teacher poses the following question to her class: "We all know that the Earth pulls on the moon, but does the moon pull on the Earth? If so, which exerts a greater force?" The following students offer their answers and justifications. If the Earth pulls on the moon, then the moon must Student 1 also pull on the Earth. The forces they exert on each other would have to be equal and opposite. If the Earth pulls on the moon, then the moon must also pull on the Earth. But the Earth is much larger Student 2 and heavier than the moon, so the Earth will exert a greater force. The Earth pulls on the moon due to gravity but the Student 3 moon doesn't have gravity so it can't pull back on the Earth. The Earth pulls on the moon but the moon is so far Student 4 away that it can't pull back on the Earth. Which student's answer is the most accurate?

What is the relationship between the wavelength of a wave and it's energy?

Anne applies a force on a toy car and makes it move forward. what can be said about the forces acting on the toy car at the moment anne applies the force?

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