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Consider a U-shaped metal rod with a metal rod touching it, which is free to slide (shown below). A magnetic field is out of the page everywhere, as in the diagram below.
If the rod is moving to the right at a velocity v,
a) would there be a current? Explain. If so, determine the direction of the current.
b) would there be an emf? Explain. If so, calculate the emf in terms of the magnetic field, B, the velocity of the rod, v, and the length l. Show your work; do not just write down your result. Show your calculation.
In short-track speed skating, the track has straight sections and semicircles 16 m in diameter. What is the horizontal force on the skater
Compute the work done by an external agent during an isothermal compression of 1 mol of oxygen from a volume of 22.4 L at 0oC and 1.00 atm to a volume of 16.8 L
One mole of an ideal monatomic gas is expanded adiabatically and quasi-statically from a pressure of 1,172 kPa and a temperature of 273 K to a pressure of 279 kPa. What is the final volume of the gas in cubic metres?
The human eye is sensitive to orange light having a frequency of about 4.95 1014 Hz, What is the energy in joules of the photons associated with this light
A ball rolls off a table and falls 0.81 m to the floor, landing with a speed of 5.5 m/s. What initial speed must the ball have if it is to land with a speed of 6.3 m/s
What must be one's speed relative to frame S in order that one's clock will lose 1 second per day as observed from S? What if teh are to lose one minute per day.
A gas is to be expanded from initial state i to final state f along either path 1 or path 2 on a p-V diagram. What is the change in the internal energy of the gas along path 2
a ball with a mass of 10g is swung in a horizontal circular path on a string of length 0.5m. if the balls speed is 4.5m/s, estimate the centripetal acceleration
A steel ball bearing 8.0 mm in diameter is dropped into a cylinder of glycerin. What is the terminal velocity of the ball bearing
A spacecraft with circular (north and south sides) of diameter 325.0 m passes Earth moving eastward (in relation to you), Determine the speed of the spacecraft in units of c, the speed of light in vacuum
A small object of mass 0.0150kg & a charge of 3.1 uC hangs fromthe ceiling by a thread. determine the tension in the thread
Water flowing through a pipe suddenly comes to a section of pipe where the pipe diameter decreases to 86% of its previous value. what is its speed in this smaller section
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