Physics, 08.04.2020 04:31, candymorgan81
A conducting wire formed in the shape of a right triangle with base b = 28 cm and height h = 83 cm and having resistance R = 2.8 ?, rotates uniformly around the y-axis in the direction indicated by the arrow (clockwise as viewed from above (loooking down in the negative y-direction)). The triangle makes one complete rotaion in time t = T = 1.2 seconds. A constant magnetic field B = 1.1 T pointing in the positive z-direction (out of the screen) exists in the region where the wire is rotating.1)What is ?, the angular frequency of rotation?2)What is Imax, the magnitude of the maximum induced current in the loop?3)At time t = 0, the wire is positioned as shown. What is the magnitude of the magnetic flux ?1 at time t = t1 = 0.45 s?4)What is I1, the induced current in the loop at time t = 0.45 s? I1 is defined to be positive if it flows in the negative y-direction in the segment of length h.5)Which of the folowing statements about?o, the magnitude of the flux through the loop at time t = to = 0.3 s, and Io, the magnitude of the current through the loop at time t = to = 0.3 s, is true? ?max and Imax are defined to be the maximum values these quantites achieve during the complete rotation. a.?o = 0 and Io = 0b.?o = 0 and Io = Imaxc.?o = ?max and Io = 0d.?o = ?max and Io = Imax6)Suppose the frequency of rotation is now doubled. How do ?max, the maximum value of the flux through the loop, and Imax, the maximum value of the induced current in the loop change?a.?max and Imax both doubleb.?max doubles and Imax remains the samec.?max remains the same and Imax doublesd. Both ?max and Imax remain the same
Answers: 3
Physics, 21.06.2019 17:30, Bladen6579
Abaseball picther can throw a ball at about 90 miles per hour, v = 40 m/s, on solid rock ground. we now put him into space. when he throws the ball, which weighs mb = 0.15 kg moves away from himat the same speed. how long does it take the ball thrown in space to travel the 30 meters to the batter? he weighs mp = 100kg
Answers: 1
Physics, 22.06.2019 03:50, am2garcia5
A30 kg weight lies on top of a massless piston of area a = 0.01 m2 the exterior air is at a (constant) p =1 atm and t = 27 c. the interior gas is 0.4 moles of (ideal) n2 and it has initial temperature 27.00 degrees c. 1. what is the initial pressure in the interior? a. 29.4 kpa b. 130.7 kpa c. 101.3 kpa the next three questions concern what happens when an amount of heat q is slowly added to the interior, raising the piston by 1 mm and raising the interior temperature to 27.40 c
Answers: 3
A conducting wire formed in the shape of a right triangle with base b = 28 cm and height h = 83 cm a...
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