Recent content by shadowfalcon

This is a really general answer... When a person is walking, he or she pushes backwards on the ground. According to Newton's third law, the ground pushes back on the person which helps him or her accelerate forwards. If you want a real life application, think about an icy ring. It is really...

I think this is right... True. At the bottom of the circle the net force must point upwards or otherwise center of circle. In order for this to happen, the gravitational force must be therefore less than the tension force exerted upwards.

We already know the applied force, so work force times displacement. I could be wrong however... :-p

If a magnet could somehow oscillate in and out of a coil of wire and used to power a light bulb, could that power the light bulb forever? I learned in class that running through a magnet through a coil of wire could produce an electric current. If we had two magnets powerful enough to repel...

Ok thanks. My friend just thought it should be a conductor for some reason.

I only know how to figure out work done. W = Fd cos θ. θ is angle of inclination or 16.6°. Applied force F is 100N. d or distance should be 35m. W = 3354.13 J

A fully charged electroscope is touched with a neutral balloon. It is observed that the foil leaves of the electroscope are unaffected when the electroscope is touched w/ the balloon. Explain why the foil leaves were unaffected when the charged electroscope was touched by the neutral balloon...