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The current in a solenoid increases at a constant rate from zero to 10 amps in one second. the cross-sectional area of the solenoid is .000315m^2, and there are 300 turns of conducting wire over its 0.15m length.
What is the magnetic field in the center of the solenoid at 0.5 seconds?
What is the inductance of the solenoid?
What is the back emf during the first second?
Suppose two alpha particles were held together so they were just touching. Estimate the electrostatic repulsive force each would exert on the other
Two particles are fixed on x-axis. Particle 1 of charge q1 = -2×10^-7 C at x = 20 cm and particle 2 of charge q2 = +8×10^-7 C at x = 70 cm. At what x coordinate on the axis is net electric field produced by the particles equal to zero.
A policeman is chasing a speeding car with a seed of 160 km/hr. the speeding car is moving with a speed of 120 km/hr. what frequency will the driver of the speeding car hear
Brian is trying to pull Julie on a sled across a flat snowy field. Brian pulls on a rope attached to the sled. how much force must Brian exert on the rope to start moving the sled
a potential difference of 120 v produces a current of 8.0 a in the heating element of a toaster. what is the resistance
An electron is released from rest at the negative plate of a parallel plate capacitor. How fast is the electron moving just before it reaches the positive plate
A power station delivers 510 kW of power at 12,000 V to a factory through wires with total resistance 3.5 . How much less power is wasted
The distance traveled is dependent on the initial velocity, the acceleration and the time of travel. What is the distance traveled during the last second
Determine the tension T in the string.
an object slides on a level surface in the x direction. it slows and comes to a stop with a constant acceleration of
A sun yacht is a spacecraft with a large sail that is pushed by sunlight. Although such a push is tiny in everyday circumstances, What is the magnitude of the resulting acceleration
The rms value of the magnitude of the magnetic field in an electromagnetic wave is Brms = 0.137 T. Determine the intensity of this wave
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