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A horizontal wire of length 0.58 m, carrying a current of 2.5 A, is placed in a uniform external magnetic field. When the wire is horizontal, it experiences no magnetic force. When the wire is tilted upward at an angle of 23°, it experiences a magnetic force of 5.6 × 10-3 N. Determine the magnitude of the external magnetic field.
When a car is traveling at 25 m/s on level ground, the stopping distance is found to be 22m. This distance is measured by pushing hard on the brakes so that the wheels skid on the pavement. The same car is driving at the same speed down an incline th..
How much force must the elbow exert?What is the horizontal distance between the elbow and the point where the weight of the forearm acts?
In a certain automobile engine with an efficiency of 19.2%, combustion of gasoline in one cylinder releases 490 J of heat. Find the total mechanical power produced by all four cylinders, operating at 48 cycles/s, or 2880 rpm
q1. laser light at 635nm falls on a double-slit apparatus with slit separation 6.910-6m. find out the separation
A uniform cylindrical turntable of radius 1.80 m and mass 25.2 kg rotates counterclockwise in a horizontal plane with an initial angular speed of 4pi rad/s. Find the final angular speed of the clay and turntable
What if, instead, you threw the flashlight away from you to change your momentum toward the spacecraft. If the flashlight had a mass of 2.00-kg and traveled at a speed of 10.0 m/s, how long would it take you to get back
A skier is initially stationary, but then accelerates at 1.6 m/s2 down a hill that is inclined 21° below the horizontal. How far horizontally and vertically has the skier traveled in 9 s?
A magnetic field is perpendicular to a 0.0409 m x 0.0585 m rectangular coil of wire that has 115 turns, What is the magnitude of the change in the magnetic field
What phase difference between two otherwise identical travelling waves, moving in the similar direction along a stretched string.
A 3.9 kg block originally at rest is pulled to the right along a horizontal, frictionless surface by a constant, horizontal force of 18 N.
What is a limiting angle of resolution
A 2000kg vehicle is travelling down the road at 20m/s (45 mph) when it reaches an intersection. Between rubber and dry asphalt, the coefficient of friction is 0.80. What is the minimum distance necessary for the car to stop.
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