Taylor was very excited today because her science teacher told the class that they would be making electromagnets in lab class. Taylor and her partner created an electromagnet by wrapping a copper wire around an iron nail. When they connected the wire ends to a battery, they were able to lift 3 paperclips with their electromagnet. The teacher wanted them to modify it so that it could lift more paperclips.

Explain how Taylor and her partner could modify the electromagnet so that it will lift 6 paperclips.

When someone slams her books on a table the kinect energy is transferred into vibrations that travel to your ears as sound waves which statement describes the movement of those waves

Ireally need this answer sombody fast fast

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?