Physics, 01.03.2021 22:20 nefertiri64
What is the net force on a 144 kg woman free falling at 88 m/s who has reached terminal velocity?
Answers: 1
Physics, 22.06.2019 07:10
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
Physics, 22.06.2019 09:40
Aturntable a is built into a stage for use in a theatrical production. it is observed during a rehearsal that a trunk b starts to slide on the turntable 10 s after the turntable begins to rotate. knowing that the trunk undergoes a constant tangential acceleration of 0.31 m/s2, determine the coefficient of static friction between the trunk and the turntable.
Answers: 3
Physics, 22.06.2019 11:00
The charge on an electron is 1.60218 × 10−19 c and its mass is 9.10939 × 10−31 kg. how strong a magnetic field must be experienced by the electron if its path is a circle of radius 5.5 cm? answer in units of t.
Answers: 3
What is the net force on a 144 kg woman free falling at 88 m/s who has reached terminal velocity?...
Mathematics, 08.12.2020 03:00
Biology, 08.12.2020 03:00
Mathematics, 08.12.2020 03:00
Mathematics, 08.12.2020 03:00
Computers and Technology, 08.12.2020 03:00
Mathematics, 08.12.2020 03:00
Social Studies, 08.12.2020 03:00
Mathematics, 08.12.2020 03:00
Mathematics, 08.12.2020 03:00
English, 08.12.2020 03:00
Mathematics, 08.12.2020 03:00