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A conducting loop has an area of 0.065 m2 and is positioned such that a uniform magnetic field is perpendicular to the plane of the loop. When the magnitude of the magnetic field decreases to 0.30 T in 0.087 s, the average induced emf in the loop is 1.2 V. What is the initial value of the magnetic field?
The bullet becomes lodged in the block, and the two slide together on the floor for a distance of 1.3 m before coming to rest. If the coefficient of friction between the block and the floor is 0.40, Elucidate what is the mass of the block?
What is the resistance of a light bulb that uses an average power of 55 W when connected to a 60Hz power source with a peak voltage of 170 V? What is the resistance of a 80 Wbulb?
you have two capacitors one with capacitance 19.5 of and the other of unknown capacitance. you connect the two
an electric field of 210000 nc points due west at a certain spot. what is the magnitude of the force that acts on a
Two identical 0.12 kg blocks (labeled 1 and 2) are initially at rest on a nearly frictionless surface, connected by an unstretched spring, What is the final vibrational energy of the real system
A bird sits on a telephone wire midway between two poles 20 meters apart. The wire, assumed weightless, sags by 50 cm. If the tension in the wire is 90 Newtons, what is the mass of the bird?
Express the power in terms of some or all of the variables given in the problem introduction.
Acharge moves a distance of 2.1 cm in the direction of a uniform electric field having a magnitude of 220 N/C. The electrical potential energy of the charge decreases by 136.122e-19J as it moves.
The drawing shows a person (weight W = 581 N, L1 = 0.852 m, L2 = 0.402 m) doing push-ups. Find the normal force exerted by the floor on each hand and each foot
The water in a deep underground well is used as the cold reservoir of a Carnot heat pump that maintains the temperature of a house at 294 K. Determine the temperature of the well water
a near the bottom of the spring the spring only supports the mass of the mass hanger 50 g. assuming its k value is 12
You are to consider the quantum states of an electron confined to a linear regime of length L = 1nm. Find the wavelength of light (in nm) that would be absorbed
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