A simple gaussmeter for measuring horizontal magnetic fields consists of a stiff 50 cm wire that hangs vertically from a conducting pivot so that its free end makes contact with a pool of mercury in a dish below. The mercury provides an electrical contact without constraining the movement of the wire. The wire has a mass of 6 g and conducts a current downward. The acceleration due to gravity is 9.81 m/s 2 . What is the equilibrium angular displacement of the wire from vertical if the horizontal magnetic field is 0.01 T and the current is 0.1 A
Answers: 3
Physics, 21.06.2019 23:30, mmaglaya1
Ablock of mass m = 2.5 kg is attached to a spring with spring constant k = 790 n/m. it is initially at rest on an inclined plane that is at an angle of 28 degrees with respect to the horizontal, and the coefficient of kinetic friction between the block and the plane is k = 0.14. in the initial position, where the spring is compressed by a distance of a = 0.18 m, the mass is at its lowest position and the spring is compressed the maximum amount. take the initial gravitational energy of the block as zero. b) if the spring pushes the block up the incline, what distance, l, in meters will the block travel before coming to rest? the spring remains attached to both the block and the fixed wall throughout its motion.
Answers: 1
Physics, 22.06.2019 07:20, hardwick744
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
Physics, 22.06.2019 10:30, tyw3366812778
Awoman holds a book by placing it between her hands such that she presses at right angles to the front and back covers. the book has a mass of m = 1.8 kg and the coefficient of static friction between her hand and the book is μs = 0.67. no attempt 50% part (a) what is the weight of the book, fgb in newtons?
Answers: 3
Physics, 22.06.2019 10:40, itsyagirl11076
Two point charges are on the y axis. a 3.90-µc charge is located at y = 1.25 cm, and a -2.4-µc charge is located at y = −1.80 cm. (a) find the total electric potential at the origin. v (b) find the total electric potential at the point whose coordinates are (1.50 cm, 0). v
Answers: 1
A simple gaussmeter for measuring horizontal magnetic fields consists of a stiff 50 cm wire that han...
Mathematics, 03.02.2021 22:10
Mathematics, 03.02.2021 22:10
Mathematics, 03.02.2021 22:10
Mathematics, 03.02.2021 22:10
Mathematics, 03.02.2021 22:10
Mathematics, 03.02.2021 22:10
Mathematics, 03.02.2021 22:10