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A total charge of 14 mC passes through a cross-sectional area of a nichrome wire in 2.8 s.
a) What is the current in the wire?
b) How many electrons pass through the cross-sectional area in 10.0 s?
c) If the number of charges that pass through the cross-sectional area during the given time interval doubles, what is the resulting current?
A 26 g bullet moving a horizontal velocity of 370 m/s comes to a stop 9.3 cm within a solid wall. What is the change in the bullet's mechanical energy
A circular conducting loop of radius 11.0 cm is located in a region of homogeneous magnetic field of magnitude 0.300 T pointing perpendicular to the plane of the loop. Calculate the magnitude of the induced emf in the loop
A 11.4-kg cylinder rolls without slipping on a rough surface. At an instant when its center of gravity has a speed of 12.1 m/s, find the rotational kinetic energy
Two resistors, of R1 = 2.93 ? and R2 = 6.69 ?, are connected in series to a battery with an EMF of 24.0 V, Find the current I1 through the first resistor
A transistor to be used in a circuit is rated for a maximum current of 30 mA if operated at 9.0 V.c What is the maximum acceptable power to the transistor
A parallel plate capacitor is made of two 5cm x 5cm square plates that are separated by .012mm. The plates are charged to plus and minus 9.8nC each. What is the energy stored in the capacitor
A 3.8 kg box is sliding down a surface that is inclined downwards by 30° below the horizontal. How much energy of the box has been lost (dissipated) by the friction
A researcher notices that the frequency of a note is emitted by a car horn appears to drop from 284 Hz to 266 Hz as the car passes him. What value does he obtain for the speed of the car
A car rounds a 1.15 radius circular track at 82 Find the magnitude of the car's average acceleration
An iron bolt is used to connect two iron plates together. The bolt must withstand shear forces up to about 3150 N. Calculate the minimum diameter for the bolt
In a plane radio wave the maximum value of the electric field component is 5.17 V/m. Calculate the maximum value of the magnetic field component
The disk would slide off the turntable if it is located at a radius larger than 16 cm from the axis of rotation. What is the coefficient of static friction.
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