Let's consider friction now: Run this simulation again with μk > 0. Set the value for μk that is similar to the value you found from your Lab 6 (which should have been between 0.2-0.8). Include a screenshot of your setup when the object is at the bottom of the ramp. Is the total energy the same at the beginning as it is at the end? What is the percent difference in this case? Please show your calculations! If you look at each picture, one is lower on the ramp and then once the uk is 0.4. I need to find out what the total energy is at beginning and at the end.

What is required for an electric charge to flow through a wire? zero resistance in the wire a balance of electric potential high resistance in the wire a difference in electric potential

Search coils and credit cards. one practical way to measure magnetic field strength uses a small, closely wound coil called a search coil. the coil is initially held with its plane perpendicular to a magnetic field. the coil is then either quickly rotated a quarter-turn about a diameter or quickly pulled out of the field. (a) derive the equation relating the total charge q that flows through a search coil to the magnetic-field magnitude b. the search coil has n turns, each with area a, and the flux through the coil is decreased from its initial maximum value to zero in a time ∆t. the resistance of the coil is r, and the total charge is q = i∆t, where i is the average current induced by the change in flux. (b) in a credit card reader, the magnetic strip on the back of a credit card is rapidly “swiped” past a coil within the reader. explain, using the same ideas that underlie the operation of a search coil, how the reader can decode the information stored in the pattern of magnetization on the strip. (c) is it necessary that the credit card be “swiped” through the reader at exactly the right speed? why or why not?

Most short-period comets do not have randomly oriented orbits because