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Distinguish between a common bar magnet and an electromagnet. What is the cause of a magnetic field about a common bar magnet? What is the cause of a magnetic fields in an electromagnet?
How are electric motors and electric generators similar? Different? How do they each make use of electromagnetic induction?
What does a transformer do? How does it make use of electromagnetic induction? What correction do you make to a friend who states that a step-up transformer boosts energy, while a step-down transformer reduces energy in a circuit?
A car at the Indianapolis 500 accelerates uniformly from the pit area, going from rest to 350km/h in a semicircular arc with a radius of 210m. Determine the tangential and radial acceleration of the car
a small particle with a mass of 2 kg carrying a charge of 1 nc is at the surface of a charged spherical conductor of
Create a force diagram of a car as it moves along a track? Create a force diagram of mass hanger as it moves towards the ground? Create a force diagram of a system car and mass hanger as they move together?
The drawing shows four point charges. The value of q is 2.06 µC, and the distance d is 0.98 m. Find the total potential at the location P. Assume that the potential of a point charge is zero at infinity. 1 V
A toboggan approaches a snowy hill moving at 10.9 m/s. The coefficients of static and kinetic friction between the snow and the toboggan are 0.470 and 0.320, Find the acceleration of the toboggan as it is going up the hill
a truck horn emits a sound with a frequency of 245 hz. the truck is moving on a straight road with a constant speed.
a rocket rises vertically from rest with an acceleration of 3.2 ms2 until it runs out of fuel at an altitude of 870 m.
a disk of radius 1.2 cm has a surface charge density of 7.0 microcm2 on its upper face. what is the magnitude of the
Charge q1 = 6.01·10-8 C is placed at the origin. Charges q2 = -1.33·10-8 C and q3 = 1.75·10-8 C are placed at points (0.185 m,0 m) and (0 m,0.211 m), Determine the magnitude of the net electrostatic force on charge q3
an airplane pilot wishes to fly directly westward. according to the weather bureau a wind of 75.0 kmh is blowing
a 5-microf capacitor is charged to 30 v and is then connected across a 10-microh inductor. the maximum value of the
A particle moving along the x-axis has its velocity described by the function vx=2t2 m/s, where t is in s. Its initial position is x0 = 1.7m at t0 = 0 s. what is the particle's position
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