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a solenoid has a diameter of 12cm when a current i exists in its winding a uniform magnetic field of magnitude B = 30mT is produced in its interior. By decreasing i, the field is caused to decrease at the rate of 6.5 mT/s. Calculate the magnitude of the induced electric field
a) 2.2 cm and
b) 8.2 cm form the axis of the solenoid
A gas is enclosed in a container fitted with a piston of cross-sectional area 0.150 m2. If the internal energy of the gas decreases by 6.40 J, find the amount of heat removed from the system by heat during the compression
An object is placed 17 cm to the left of a converging lens of focal length 30 cm. Find the position and magnification of the final image
A 65 man's arm, including the hand, can be modeled as a 76 -long uniform cylinder with a mass of 3.4. by how much does he raise his center of gravity?
In an atwood's machine, one block has a mass of .6kg and the other a mass of .56 kg. What is the direction of the net torque on the pulley
If the angular magnification of an astronomical telescope is 38 and the diameter of the objective is 66 mm, what is the minimum diameter of the eyepiece
A patient undergoing radiation therapy for cancer receives a 230-rad dose of radiation. Assuming the cancerous growth has a mass of 0.10kg , calculate how much energy it absorbs
A professor shipwrecked on Hooligan's Island decides to build a telescope from his eyeglasses and some coconut shells. Which lens should he use as the objective
An archer shoots an arrow horizontally at a target 15m away. What was the initial speed of the arrow
A uniform electric field points midway between the positive x and y axies. Its strength is 100Volts/m. A -50nC charge is placed at the position ( 2m, 3m ) and fixed in place. What are the components of the total electric field at the location (..
Five thousand joules of heat is put into a Carnot engine whose hot and cold reservoirs have temperatures of 490 and 270 K, respectively. How much heat is converted into work
In the typical X-ray lamp. The electrons are accelearated in the potential difference of 10000V before hitting the water cooled electrode. Find the shortest wavelength of X-rays produced in this lamp.
The air-track carts in the figure are sliding to the right at 1.0 m/s. The spring between them has a spring constant of 120 N/m and is compressed 4.5 cm. Compute the speed of the air track carts held by a string together.
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