Physics, 18.03.2021 01:10 jordanrose98
Based on the reading in “Heating Up” why is 30 ppm so significant? 10. From the Reading in “Heating Up” who or what is responsible for the majority of CO2 being produced
Answers: 3
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
Physics, 22.06.2019 14:50, MoogleCaliS
Nitrogen (n2) undergoes an internally reversible process from 6 bar, 247°c during which pν1.2 = constant. the initial volume is 0.1 m3 and the work for the process is 121.14 kj. assuming ideal gas behavior, and neglecting kinetic and potential energy effects, determine heat transfer, in kj, and the entropy change, in kj/s. show the process on a t-s diagram.
Answers: 2
Based on the reading in “Heating Up” why is 30 ppm so significant?
10. From the Reading in “Heating...
Mathematics, 17.09.2020 07:01
Mathematics, 17.09.2020 07:01
Mathematics, 17.09.2020 07:01
Mathematics, 17.09.2020 07:01
Mathematics, 17.09.2020 07:01
Mathematics, 17.09.2020 07:01
Mathematics, 17.09.2020 07:01
Mathematics, 17.09.2020 07:01
Mathematics, 17.09.2020 07:01
Mathematics, 17.09.2020 07:01