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A 22 turn circular coil of radius 4.60cm and resistance 1.00 ohms is placed in a magnetic field directed perpendicular to the plane of the coil. The magnitude of the magnetic field varies in the time according to the expression B=.0100t+.0400t^2, where t is in seconds and B in telsas. Calculate the magnitude of the induced emf in the coil at t=5.20s (in units of mV)
A rocket blasts off vertically from rest on the launch pad with an upward acceleration of 2.30. At 10.0 after blastoff, the engines suddenly fail, which means that force they produce instantly stops.
1. if the frequency is variable and the length of the closed at both ends tube is fixed at 45 cm sketch the plastic
what is the buoyant force on a beachball of diameter 20.0 cm that is HALF submerged in a fresh water pool
What is the change in gravitational potential energy of a 2.00- kg mass that is carried from the surface of the earth to a distance of one earth radius above the surface
with the suspension point 30cm from the left edge of the meter stick hang a 200g mass 10cm from the left edge of the
An AC generator has an output rms voltage of 58 V at a frequency of 76 Hz. If the generator is connected across a 30 mH inductor, find the inductive reactance
a ball is tied to the end of a cable of negligible mass. the ball is spun in a circle with a radius 2.00 m making 7.00
A current of 74.8 mA exists in a metal wire, In what direction do the electrons travel with respect to the current
A person drops an object from a bridge spanning a rushing river, falling a distance h before hitting the water. what would be the object's speed at the moment of impact
What are the x- and y-components of the electric field at (x, y) = (0 m, +4 m)? (a)Two charges are placed on the x-axis: one is placed at x = 3 m and the other is at x = -3 m.
A football player runs directly down the field for 29m beforeturning to the right at an angle of 34o from hisoriginal direction and running an additional 21m before beingtackled.
A 137-cm-long wire is made by welding a 1.3-mm-diameter, 26-cm-long copper wire to a 0.31-mm-diameter, What is the resistance of the composite wire
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