Physics, 17.07.2019 00:00, granthazenp5e9mj
The highest-energy waves in the electromagnetic spectrum are
Answers: 1
Physics, 21.06.2019 20:30, glocurlsprinces
If forces acting on an object are unbalanced, which factors may result fron an unbalanced force? check all that apply
Answers: 1
Physics, 22.06.2019 00:00, morgaaaan3835
Suppose that recording station n is located 200 km north of the epicenter of an earthquake, and recording station s is located 100 km south of the epicenter of the same earthquake. which of the following statements would be true?
Answers: 2
Physics, 22.06.2019 07:10, cannan
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?
Answers: 2
The highest-energy waves in the electromagnetic spectrum are...
Mathematics, 22.11.2019 11:31
Mathematics, 22.11.2019 11:31
English, 22.11.2019 11:31
Mathematics, 22.11.2019 11:31
Mathematics, 22.11.2019 11:31
Mathematics, 22.11.2019 11:31