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The pickup coil in an electric guitar contains 10,000 turnsand has a diameter of 2.1 mm. When thepickup coil is very close to a guitar string, there is a field ofmagnitude B = 0.09 T in the coil. If this steel string is vibrating at a frequency of245 Hz, what is the approximatemaximum emf induced in the coil? For simplicity, assume the induced flux varies back and forth between zero and the value found whenB in the coil is at its maximum value (found when thestring is very close to touching the coil).
The one-dimensional parity operator pi is defined by pi psi (x) = psi (-x) In other words, pi changes x into –x everywhere in the function. Is pi a Hermitian operator?
Eddie the Eagle, British Olympic ski jumper, is attempting his most mediocre jump yet. What was the magnitude of Eddie's initial velocity as he left the ramp
Two sound sources driven in phase by the equal amplifier are d = 4 m apart on the y axis. At a point a very large distance from the y axis, constructive interference is first heard at an angle θ1 = 0.140 rad with the x axis.
questionsmall terrestrial bodies lacked gravity force which depends on mass to keep initial atmosphere supplied by its
A 25 kg child at a playground runs with an initial speed of 2.5 m/s along a path tanget to the rim of a merry-go-round with a radius of 2.0 m and jumps on. Find the angular velocity of the child and merry-go-round
Two coils are at fixed locations. When coil 1 has no current, and the current in col 2 increases at the rate 15.0 A/s, the emfin coil 1 is 25.0mV. what is the magnetic flux passing through coil 2
A cylindrical brass sleeve is to beshrink-fitted over a brass shaft whose diameter is 3.216 cm at 0°C. The diameter of the sleeve is3.205 cm at 0°C. To what temperature must the sleeve beheated before it will slip over the shaft
Two charges are placed on the x axis. One charge (q1 = +12.5 µC) is at x1 = +3.0 cm and the other (q2 = -13 µC) is at x2 = +9.0 cm. Find the net electric field (magnitude and direction) at the following locations. (a) x = 0 cm magnitude N/C direc..
An artificial lens is implanted in a person's eye to replace a diseased lens. The distance between the artificial lens and the retina is 2.82 cm. What is the power of the implanted lens
A convex lens with f1= 20.3cm is mounted 39.5cm to the left of a concave lens. When an object is placed 29.4cm to the left of the convex lens, What is the focal length f2 of the concave lens
Capacitors C1=10\muF and C2=25\muF are each charged to 25V , then disconnected from the battery without changing the charge on the capacitor plates. What is the potential difference across each capacitor
A 25 g glass tumbler contains 410 mL of water at 24°C. If four 20 g ice cubes each at a temperature of -3°C are dropped into the tumbler, what is the final temperature of the drink
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