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A hundred turn of insulated copper wire are wrapped around an iron cylinder of cross-sectional area 1.0x10^-3 m^2 and are connected to a resistor. The total resistance in the circuit is 10 ?. If the longitudinal magnetic field in the iron changes from 1 T in one direction to 1 T in the opposite direction, how much charge flows through the circuit?
A copper rod of cross-sectional area 11.2 cm2 has one end immersed in boiling water and the other in an ice-water mixture, which is thermally well insulated except for its contact with the copper. How many grams of ice melt each second
A steel aircraft carrier is 364m long when moving through the icy North Atlantic at a temperature of 2.4°C. By how much does the carrier lengthen as it is traveling in the warm Mediterranean Sea at a temperature of 21° C.
A glass U-tube with a uniform diameter of 0.850 cm is used to determine the density of an oil. Calculate the density of the oil
A 10-cm-long thin glass rod is uniformly charged to 50 nC. A small plastic bead, charged to - 5.4nC , is 4.5 cm from the center of the rod. What is the magnitude of the force on the bead? (N)
A 160 g trick baseball is thrown at 63 km/h . It explodes in flight into two pieces, How much energy, in joules, do the pieces gain in the explosion
On a workday an average decibel level of the busy street is 89 dB, with 100 cars passing a given point every minute. If the number of cars is reduced to 30 every minute on a weekend, what is the decibel level of street.
assume that adults have iq scores that are normally distributed with a mean of 105 and a standard deviation of 20. find
The central star of a planetary nebula emits ultraviolet light with wavelength 104nm. What is the first-order diffraction angle
Two boat landings are 1.0 km apart on the same bank of a stream that flows at 1.8 km/h. What is the speed of the boat relative to the water
A thin square metal plate is 1.00 m on a side is located in the xz-plane. A charge of 400 nC is placed on the plate and can be taken to be distributed uniformly.
The drawing shows a uniform horizontal beam attached to a vertical wall by a frictionless hinge and supported from below at an angle ?= 36o by a brace that is attached to a pin. Find the magnitudes of these three forces
During an etiquette class, you walk slowly and steadily at 0.20 {\rm{ m/s}} for 2.5 {\rm m} with a 0.75 {\rm kg} book balanced on top of your head
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