![subject](/tpl/images/cats/fizika.png)
Physics, 04.01.2021 14:30 jebrinlayan9012
FOR A liquid drop of radius r falling in air with terminal velocity, power delivered by gravitational force is propotional to
![ansver](/tpl/images/cats/User.png)
Answers: 1
![](/tpl/images/ask_question.png)
![](/tpl/images/ask_question_mob.png)
Another question on Physics
![question](/tpl/images/cats/fizika.png)
Physics, 22.06.2019 02:30
Aforce of 9.00 newtons acts at an angle of 19.0 to the horizontal. what is its component in the horizontal direction?
Answers: 2
![question](/tpl/images/cats/fizika.png)
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
![question](/tpl/images/cats/fizika.png)
Physics, 23.06.2019 00:20
What efficiency of a car's engine when heat input is 200,000 joules and waste heat is 150,000 joules? a. 75% b. 35% c. 25% d. 85%
Answers: 2
![question](/tpl/images/cats/fizika.png)
Physics, 23.06.2019 01:30
Match each type of lever with the correct diagram. 1. first-class 2. third-class 3. second-class
Answers: 3
You know the right answer?
FOR A liquid drop of radius r falling in air with terminal velocity, power delivered by gravitationa...
Questions
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/fizika.png)
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 23.06.2019 18:50
![question](/tpl/images/cats/mat.png)
Mathematics, 23.06.2019 18:50
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 23.06.2019 18:50
![question](/tpl/images/cats/en.png)
English, 23.06.2019 18:50
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 23.06.2019 18:50
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 23.06.2019 18:50
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/en.png)
English, 23.06.2019 18:50
![question](/tpl/images/cats/mat.png)
Mathematics, 23.06.2019 18:50
![question](/tpl/images/cats/istoriya.png)
History, 23.06.2019 18:50
![question](/tpl/images/cats/mat.png)
Mathematics, 23.06.2019 18:50
![question](/tpl/images/cats/en.png)