![subject](/tpl/images/cats/fizika.png)
Fish are hung on a spring scale to determine their mass. (a) what is the force constant of the spring in such a scale if the spring stretches 8.00 cm for a 10.0 kg load? (b) what is the mass of a fish that stretches the spring 5.50 cm? (c) how far apart are the half-kilogram marks on the scale?
![ansver](/tpl/images/cats/User.png)
Answers: 1
![](/tpl/images/ask_question.png)
![](/tpl/images/ask_question_mob.png)
Other questions on the subject: Physics
![image](/tpl/images/cats/fizika.png)
![image](/tpl/images/cats/fizika.png)
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
![image](/tpl/images/cats/fizika.png)
![image](/tpl/images/cats/fizika.png)
Physics, 22.06.2019 21:40, iancuteodora30
Ahair dryer is basically a duct in which a few layers of electric resistors are placed. a small fan pulls the air in and forces it through the resistors where it is heated. air enters a 1200 w hair dryer at 100 kpa and 22°c and leaves at 47°c. the cross-sectional area of the hair dryer at the exit is 60 cm2. neglecting the power consumed by the fan and the heat losses through the walls of the hair dryer, determine (a) the volume flow rate of air at the inlet and (b) the velocity of the air at the exit.
Answers: 1
You know the right answer?
Fish are hung on a spring scale to determine their mass. (a) what is the force constant of the sprin...
Questions in other subjects:
![Konu](/tpl/images/cats/mat.png)
Mathematics, 26.11.2020 08:30
![Konu](/tpl/images/cats/mat.png)
![Konu](/tpl/images/cats/mkx.png)
Arts, 26.11.2020 08:30
![Konu](/tpl/images/cats/mat.png)
![Konu](/tpl/images/cats/mat.png)
Mathematics, 26.11.2020 08:40
![Konu](/tpl/images/cats/obshestvoznanie.png)
Social Studies, 26.11.2020 08:40
![Konu](/tpl/images/cats/en.png)
![Konu](/tpl/images/cats/mat.png)
Mathematics, 26.11.2020 08:40
![Konu](/tpl/images/cats/mat.png)
![Konu](/tpl/images/cats/User.png)
SAT, 26.11.2020 08:40