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An electron is moving in a concentric circular orbit inside a solenoid of radius 4.89 cm, in such a manner that it grazes the inside surface of the coil at all the points of its orbit. The speed of the electron is 9,820 m/s, and the solenoid has 3.50×103 turns/m. Assume the coils of the solenoid are so thin the electron moves essentially at the radius of the solenoid. What electric current is passing through the solenoid?
A luge (sled) and its rider, with a total mass of 85 kg, emerge from a downhill track onto a horizontal straight track with an initial speed of 37 m/s, What distance do they travel while decelerating
An elevator weighing 2500 N ascends at a constant speed of 8.0 m/s. How much power must the motor supply to do this?
What is momentum of a truck speeding down the highway at a given instant? Discuss how the momentum is changed if the truck loses some of its cargo while maintaining the same velocity.
n air-filled spherical capacitor is constructed with inner and outer shell radii of 7.00 and 14.0 cm, respectively. Calculate the capacitance of the device
A person who weighs 656 N is riding a 91-N mountain bike. compute the area of contact between each tire and the ground
If the central charge shown below is displaced 0.350 nm to the right while the other charges are held in place, find the magnitude and direction of the net force
A parallel-plate capacitor has plates of area .5 m^2 separated by a distance of 2.0 mm. What is this capacitor's capacitance
A liquid (? = 1.65 g/cm3) flows through a horizontal pipe of varying cross section, Calculate the smaller section's pressure
An airplane whose air speed is 628km/h is supposed to fly in a straight path 33.0? north of east. But a steady 88km/h wind is blowing from the north. In what direction should the plane head
If the wire is heated to 40.0°C while the 7.0-V potential difference is maintained, what is the resulting current in the wire
A monatomic ideal gas expands on a linear process such that P=3V + P1 ( initial pressure.) P1 and V1 are the initial pressure and initial volume
compare the electric force holding the electron in orbit (r=0.53*10^-10m) around the proton nucleus of the hydrogen atom, What is the ratio of these two forces
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