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A 500 turn solenoid by a length of 20 cm and a radius of 1.5 cm carries a current of 2.0 A. A second coil of four turns is wrapped tightly about this solenoid so that it can be considered to have the similar radius as the solenoid. Find the following when the current in the solenoid increases to 5.0 A in a period of 0.90 s.
a) The change in the magnetic flux during the coil
b) the magnitude of the average induced emf in the coil
The smallest insects that a bat can detect are approximately the size of one wavelength of the sound the bat makes. What is the minimum frequency of sound waves needed for the bat to detect an insect that is 0.53 cm long? (Assume the speed of soun..
By measuring the spectrum of wavelengths of light from our sun, we know that its surface temperature is 5760 K. Use this information to calculate the diameter of our sun
Two small frogs simultaneously leap straight up from a lily pad. Frog A leaps with an initial velocity of 0.726 m/s, while frog B leaps with an initial velocity of 1.62 m/s
In the movie Terminator, Arnold Schwarzenegger lifts someone up bythe neck and, with both arms fully extended and horizontal, holdsthe person off the ground.
A child sitting at the edge of a swimming pool sees a coin resting on the bottom of the pool. How deep is the pool at the location of the coin
Use the worked example above to help you solve this problem. Figure a shows a simple apparatus for demonstrating resonance in a tube. Find the wavelength and the next two air-column lengths giving resonance
A 85 kg man in a 6.0 kg chair tilts back so that all the weight isbalanced on two legs of the chair. find the pressure exertedby each leg on the floor
q1. a 92 kg man standing on a surface of negligible friction shoves a 73 g stone lying at his feet giving it a velocity
question1with ones eye at a height of 1 m above water level on a lake one can just see over the horizon a point on the
A box slides down a 40° ramp with an acceleration of 1.260 m/s2. Find out the coefficient of kinetic friction between box and ramp.
A container is filled to a depth of 18.0 cm with water. What is the absolute pressure at the bottom of the container
The membrane that surrounds a certain type of living cell has a surface area of 5.00 10-9 m2 and a thickness of 1 10-8 m. how much charge resides on the outer surface
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