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A recently developed method to study brain function is to produce arapidly changing magnetic field within the brain. When thistechnique, known as TMS, is applied to the prefrontal cortex, forexample, it can reduce a person's ability to conjugate verbs,though other though processes are unaffected. The rapidly varyingmagnetic field is produced with a circular coil of 21 turns and aradius of 6.0 cm placed directly on the head. The current in thisloop increases at the rate of 1.2x107A/s (by discharginga capacitor. (a) At what rate does the magnetic field at the centerof the coil increase? (b) Suppose a second coil with half the areaof the first coil is used instead. Would your answer to part (a)increase, decrease, or stay the same? By what factor?
A165-g wooden cup at 15.2 degree Celcius is filled with 325ml of brewed coffee (essentially water) at 100 decrees Celcius. What will be the common final temperature of the cup
On a cool morning, when the temperature is 16 deg Celsius, you measure the pressure in your car tires to be 20.0 psi. After driving 40 mi on the freeway, temperature of your tires is 56.0 deg Celsius. What pressure will your tire gauge now show.
An L-R-C series circuit is connected to a120?Hz ac source that has vrms = 80.0V. What average power is delivered to the circuit by the source
A driver measures her "cold" tire gauge pressure to be 2.02 105 Pa. The measurement is made before driving, Find the final temperature of the air in the tires
A solenoid is made of N=2500 turns, has a length L=10cm, and a radius R=0.5cm. What is the current through the wires of the solenoid
A point charge with charge q1 = 2.80?C is held stationary at the origin, How much work W is done by the electrostatic force on the moving point charge
A house is 30 ft long and 24 ft wide, and has 8 ft high ceilings. What is the volume of the interior of the house in cubic meters and cubic centimetres.
A system consisting of two positive particles is altered by anoutside force so that its potential energy decreases by52.3 J. There is no change in kinetic energy between theinitial and final states of the system. (a) What is the work doneby the ou..
Two metal spheres of different sizes are charged such that the electric potential is the same at the surface of each, What is the ratio QB/QA and EB/EA
If the ball is released from rest at a height of 0.91 above the bottom of the track on the no-slip side, what is its angular speed when it is on the frictionless side of the track? suppose the ball is a solid sphere of radius 3.7 and mass 0.14.
An electron starts from rest 5.00 cm from the center of a uniformly charged sphere of radius 4.00 cm. If the sphere carries a total charge of 1.00 x10-9 C, how fast would the electron be moving when it reaches the surface of the sphere.
When a battery is connected to the plates of a 5.00-µF capacitor, it stores a charge of 30.0 µC. What is the voltage of the battery
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