What is the relationship (direct or inverse) between
power and time
power...
Physics, 26.01.2020 09:31 charisaramsey
What is the relationship (direct or inverse) between
power and time
power and force
power and speed
power and work
Answers: 2
Physics, 21.06.2019 23:00
Aray of light traveling parallel to the principal axis of a concave mirror will be reflected through the mirror's
Answers: 2
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 07:20
If 2 moles of co_2 at 2l and 500k are expanded reversibly to 20l, more work can be obtained from an adiabatic process than from an isothermal process. is the above statement true or false?
Answers: 3
Computers and Technology, 14.09.2019 07:30
Computers and Technology, 14.09.2019 07:30
Computers and Technology, 14.09.2019 07:30
Computers and Technology, 14.09.2019 07:30
Computers and Technology, 14.09.2019 07:30
Computers and Technology, 14.09.2019 07:30
Computers and Technology, 14.09.2019 07:30
Computers and Technology, 14.09.2019 07:30
Computers and Technology, 14.09.2019 07:30