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Can you help me about assigment physics
A solenoidal coil with 29 turns of wire is wound tightly around another coil with 310 turns. The inner solenoid is 25.0 cm long and has a diameter of 2.50 cm. At a certain time, the current in the inner solenoid is 0.140 A and is increasing at a rate of 1800 A/s
a. For this time, calculate the average magnetic flux through each turn of the inner solenoid.
b. For this time, calculate the mutual inductance of the two solenoids;
c. For this time, calculate the emf induced in the outer solenoid by the changing current in the inner solenoid.
The plank is 12.5 m long and it is suspended by vertical cables at each end. If the worker stands 2.80 from the right end of the plank, what is the tension in right cable?
Suppose you were to disconnnect the battery (without losing any of the charge on the plates) and then remove the dielectric medium. What would be the new voltage across the plates
your friend has been given a laser for her birthday. unfortunately she did not receive a manual with it and so she
The radioactive isotope 241Am, with a half-life of 432 years, is the active element in many smoke detectors. Assume such a detector will no longer function if the activity of the isotope it contains drops below 1/525 of its initial activity. How long..
A boy pulls with a force of 20 N on the 300 N wagon. What acceleration does the wagon have
The driver of a car slams on the brakes when he sees a tree blocking the road. The car slows uniformly with acceleration of -5.70 m/s2 for 4.40 s, With what speed does the car then strike the tree
two small charged balls have a repulsive force of 0.12n when they are separated by a distance of 0.70m. the balls are
In a large centrifuge used for training astronauts and pilots, a small chamber is fixed at the end of a rigid arm that rotates in a horizontal circle. Evaluate the angular acceleration in the second training exercise
A bowling ball of mass 1 kg hits a spring with velocity 1 m/s. The spring constant is also 1 (how convenient!). What is the maximum compression of the spring in centimeters
A 5.8kg box is on a frictionless 40%u2218 slope and is connected via a massless string over a massless, What is the tension in the string once the box begins to move
As a science fair project, you want to launch an 800 gram model rocket straight up and hit a horizontally moving target as it passes 25 meter above the launch point. Find at what horizontal distance between target and rocket should you launch
A man drags a table 3.50 m across the floor, exerting a constant force of 52.0 N, directed 34.0° above the horizontal. Find the work done by the applied force
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