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A circular coil consisting of a single loop of wire has a radius of 30.5 cm and carries a current of 27.1 A. It is placed in an external magnetic field of 0.326 T. Calculate the torque on the wire when the plane of the coil makes an angle of 46.1 degrees with the direction of the field.
Consider a heat engine that operates between thermal reservoirs at 510 K and 242 K. Suppose the engine does 4900 J of work while it expels 103 J of energy to the cold reservoir. Is this engine possible in the real world? Hint: Violations of the secon..
Consider the skateboarder in the figure below. If she has a mass of 49 kg, an initial velocity of 23 m/s, what is the work done by friction on the skateboarder
A 6.00 uC charge is placed at the origin and a second charge is placed on the x-axis at x = 0.300 m. what is the force on the charge at the origin
A cube with the side length 1.53 meters of solid styrofoam is completely submerged in fresh water such that the top of the styrofoam block is parallel to the water surface and is 2.55 meters beneath the surface
What is the derivative of the transverse unit VECTOR, e(theta in subscript), with respect to time? i.e., de(theta)/dt? Derive the answer using the radial and transverse (polar) coordinate system.
DEFINE the terms " Cofficient of Static Friction" and " Cofficient of Kinetic Friction, The force probe reading will represent the frictional force
The intersection is 15 m wide. Her car's maximum deceleration is -6.8m/s2, whereas it can accelerate from 43km/h to 70km/h in 8.1 s. Overlook length of her car and her reaction time.
Suppose that the coefficient of kinetic friction between Zak's feet and the floor, while wearing socks, is 0.250. Knowing this, Zak decides to get a running start and then slide across the floor.
Elements that appear in the same column of the periodic table often share similar chemical properties. In the case of the alkaline earth metals, this is troublesome since the body treats calcium, calculate the path radius of the Ca ion
An x-ray beam with wavelength 0.270nm is directed at a crystal. What is the spacing d between the planes of the crystal
q1. a 23 g ball is fired horizontally with initial speed toward a 110 g ball that is hanging motionless from a 1.1m
A uniform disk with mass m = 9.27 kg and radius R = 1.42 m lies in the x-y plane and centered at the origin. What is the magnitude of the torque on the disk about the z axis due to F1
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