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A Rod Levitating in a Magnetic Field Due in 13 hours, 3d minutes thin, horizontal copper...
A thin, horizontal copper rod is 1.20 m long and has a mass of 44.5g. What...
A thin, horizontal copper rod is 1.20 m long and has a mass of 44.5g. What is the minimum current in the rod that can cause it to float in a horizontal magnetic field of 2.45 T?
Magnetic Field from Two Wires Due in 3 hours, 10 minutes The two wires shown in...
Magnetic Field from Two Wires Due in 3 hours, 10 minutes The two wires shown in the figure below carry currents of I-5.66 A in opposite directions and are separated by do-9.55 cm d. 2 Calculate the net magnetic field at a point midway between the wires. Use the direction into the page as the positive direction and out of the page as the negative direction. 3.947E-6T Incorrect. Tries 10/10 Previous Tries Calculate the net magnetic field at point P1-that...
help me please. thank you (8c28p45) A 0.64 kg copper rod rests on two horizontal rails...
help me please. thank you
(8c28p45) A 0.64 kg copper rod rests on two horizontal rails 0.90 m apart and carries a current of 70 A from one rail to the other. The coefficient of static friction between rod and rails is 0.54. What is the smallest magnetic field (not necessarily vertical) that would cause the rod to slide? What is the angle of B from the vertical? (deg) Submit Answer Tries 0/10 What is the magnitude of B? Submit...
Work to bring a charge from infinity Due in 5 hours, 25 minutes In the figure...
Work to bring a charge from infinity Due in 5 hours, 25 minutes In the figure above, 91 - 1.50q and 92 = -9, where q = 0.27 pc, di = 3.16 cm, d2 = 4.74 cm, 81 - 46.0 and 2 - 58.0. How much work is done by the electric field as a charge Q = +49 is brought from Infinity along the path to the point shown in the figure? Submit Answer Tries 0/10 Send Feedback This...
Course Contents ..» HW Week 04 - due Evaluate Feedback Timer Notes Info Print Child Slide on Due in 4 hours, 9 minu...
Course Contents ..» HW Week 04 - due Evaluate Feedback Timer Notes Info Print Child Slide on Due in 4 hours, 9 minutes A 21.2 kg child slides down a long slide in a playground. She starts from rest at a height h1 of 26.9 m. When she is partway down the slide, at a height h2 of 14.3 m, she is moving at a speed of 5.00 m/s. Calculate the mechanical energy lost due to friction (as heat, etc...)...
Thin film of Glycerine Due in 12 hours, 9 minutes Light incident normally on a thin...
Thin film of Glycerine Due in 12 hours, 9 minutes Light incident normally on a thin film of glycerine which coats a thick glass plate, refractive index 1.55. In the resulting reflections, Completely constructive interference is observed at 420.0 nm and completely destructive interference is seen at 336.0 nm. Take the refractive index of glycerine as 1.28, calculate the thickness of the film. Submit Answer Tries 0/10
Due in 37 minutes Average Force A golf ball of mass 42.1 g is dropped from...
Due in 37 minutes Average Force A golf ball of mass 42.1 g is dropped from a height h = 1.27 m onto a hard floor and bounces back to exactly that same height. What is the average force (in N) on the ball during the 0.01 1 s that it was in contact with the floor? (Please don't forget to convert the golf ball's mass to kg!) Incorrect. Tries 2/7 Previous Tries Submit Answer Post Discussion Send Feedback
Instantaneous Velocity Due in 14 hours, 41 minutes An electron's position is given by -2.81t 1-3.86#3...
Instantaneous Velocity Due in 14 hours, 41 minutes An electron's position is given by -2.81t 1-3.86#3 + 1.836, with t in seconds and , in meters. At t 2.12 s, what is the magnitude of 0? Submit Answer Tries 0/10 At t- 2.12 s, what is the angle of relative to the positive direction of the x axis? Submit Answer Tries 0/10 Post Discussion F1 F3
Golf Ball Impulse Due in 38 minutes A golf ball (mass 0.045 kg) is hit with...
Golf Ball Impulse Due in 38 minutes A golf ball (mass 0.045 kg) is hit with a club from a tee. The plot shows the force on the ball as a function of time in milliseconds. One millisecond is 10-3 seconds. What is its speed right after the hit? Submit Answer Tries 0/7 Force [N] 0 2 4 6 14 16 18 20 8 10 12 Time [ms] Post Discussion Send Feedback
At a point 10 m away from a long straight thin wire, the magnetic field due...
At a point 10 m away from a long straight thin wire, the magnetic field due to the wire is 0.10 mT. What current flows through the wire? (o 4IT 10-7 T. m/A) 1.26 Submit My Answers Give Up Incorrect; Try Again; 5 attempts remaining Provide Feedback Continue
Magnetic Field from Two Wires Due in 3 hours, 10 minutes The two wires shown in the figure below carry currents of I-5.66 A in opposite directions and are separated by do-9.55 cm d. 2 Calculate the net magnetic field at a point midway between the wires. Use the direction into the page as the positive direction and out of the page as the negative direction. 3.947E-6T Incorrect. Tries 10/10 Previous Tries Calculate the net magnetic field at point P1-that...
help me please. thank you
(8c28p45) A 0.64 kg copper rod rests on two horizontal rails 0.90 m apart and carries a current of 70 A from one rail to the other. The coefficient of static friction between rod and rails is 0.54. What is the smallest magnetic field (not necessarily vertical) that would cause the rod to slide? What is the angle of B from the vertical? (deg) Submit Answer Tries 0/10 What is the magnitude of B? Submit...
Work to bring a charge from infinity Due in 5 hours, 25 minutes In the figure above, 91 - 1.50q and 92 = -9, where q = 0.27 pc, di = 3.16 cm, d2 = 4.74 cm, 81 - 46.0 and 2 - 58.0. How much work is done by the electric field as a charge Q = +49 is brought from Infinity along the path to the point shown in the figure? Submit Answer Tries 0/10 Send Feedback This...
Course Contents ..» HW Week 04 - due Evaluate Feedback Timer Notes Info Print Child Slide on Due in 4 hours, 9 minutes A 21.2 kg child slides down a long slide in a playground. She starts from rest at a height h1 of 26.9 m. When she is partway down the slide, at a height h2 of 14.3 m, she is moving at a speed of 5.00 m/s. Calculate the mechanical energy lost due to friction (as heat, etc...)...
Thin film of Glycerine Due in 12 hours, 9 minutes Light incident normally on a thin film of glycerine which coats a thick glass plate, refractive index 1.55. In the resulting reflections, Completely constructive interference is observed at 420.0 nm and completely destructive interference is seen at 336.0 nm. Take the refractive index of glycerine as 1.28, calculate the thickness of the film. Submit Answer Tries 0/10
Due in 37 minutes Average Force A golf ball of mass 42.1 g is dropped from a height h = 1.27 m onto a hard floor and bounces back to exactly that same height. What is the average force (in N) on the ball during the 0.01 1 s that it was in contact with the floor? (Please don't forget to convert the golf ball's mass to kg!) Incorrect. Tries 2/7 Previous Tries Submit Answer Post Discussion Send Feedback
Instantaneous Velocity Due in 14 hours, 41 minutes An electron's position is given by -2.81t 1-3.86#3 + 1.836, with t in seconds and , in meters. At t 2.12 s, what is the magnitude of 0? Submit Answer Tries 0/10 At t- 2.12 s, what is the angle of relative to the positive direction of the x axis? Submit Answer Tries 0/10 Post Discussion F1 F3
Golf Ball Impulse Due in 38 minutes A golf ball (mass 0.045 kg) is hit with a club from a tee. The plot shows the force on the ball as a function of time in milliseconds. One millisecond is 10-3 seconds. What is its speed right after the hit? Submit Answer Tries 0/7 Force [N] 0 2 4 6 14 16 18 20 8 10 12 Time [ms] Post Discussion Send Feedback
At a point 10 m away from a long straight thin wire, the magnetic field due to the wire is 0.10 mT. What current flows through the wire? (o 4IT 10-7 T. m/A) 1.26 Submit My Answers Give Up Incorrect; Try Again; 5 attempts remaining Provide Feedback Continue
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