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A small coil of 40 turns and a surface area 30 cm^2 has its plane perpendicular to a magnetic field B=0.5T. The coil is connected to a device designed to measure the total charge passing through the circuit.
(a) what is the current induced in the coil if the coil is rotated through 180 degrees in 0.1 seconds?
(b) the resistance of the circuit is 16ohms, how much charge passes through the coil?
Estimate the change in COP of your electric food freezer when it is removed from your kitchen to its new location in your basement, which is 8 C° cooler than your kitchen. (Assume that the temperature in the kitchen is 20°C and that the temperature o..
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A 500.0 g mass at the end of a spring vibrates 3.0 times per second, What is the maximum velocity of this mass
An 8.00-mH inductor and a 2.00ohm resistor are wired in series to an ideal battery. A switch in the circuit is closed at time 0, at which time the current is 0. determine the time constant for the circuit
Three identical resistances, each 24 ohms, are connected in parallel with one another. What is total current through the combination
A 50 g horizontal copper rod has a length of 1.0 m. Calculate the minimum current in the rod so that it will float in a horizontal magnetic field of 2.0 T
Two identical positive charges exert a repulsive force of 6.2 x10-9 N when separated by a distance of 3.6 x10-10 m. compute the charge of each.
In a friendly game of handball, you hit the ball essentially at ground level, How high is the ball when it hits the wall
Light from a laser beam with a wavelength of 600 nm passes through a narrow single slit and observed on a screen 1.5 m behind the slit. The first minimum of the diffraction pattern is 1.5 cm from the central maximum. How wide is the slit?
A gun is fired vertically into a 1.9 kg block of wood at rest directly above it. If the bullet has a mass of 21.00 g and a speed of 195 m/s, how high would the block rise into the air after the bullet becomes embedded in it.
A perfectly reflecting flat mirror is uniformly illuminated by light striking it perpendicularly. Calculate the intensity of the light
A stone is dropped from rest from the roof of a 100-m high building; 2.00 s after that, a second stone is thrown straight down with initial speed v0, and the second stone passes the first stone 21.6 m above ground. What are the speeds of the two s..
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