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1. A straight wire of length 0.62 m carries a conventional current of 0.8 amperes. What is the magnitude of the magnetic field made by the current at a location that is a perpendicular distance 2.9 cm from the center of the wire ? Use both the exact formula and the approximate formula to calculate the field.
2. A long straight wire carries a conventional current of 0.9 amperes. What is the approximate magnitude of the magnetic field at a location a perpendicular distance of 0.035m from the wire due to the current in the wire?
A worker stands still on a roof sloped at an angle of 21° above the horizontal. He is prevented from slipping by a static frictional force of 400 N. Find out the mass of the worker.
A constant force of 45 N directed at angle ? to the horizontal pulls a crate of weight 100 N from one end of a room to another a distance of 4 m. Given that the vertical component of the pulling force is 12 N, calculate the work done by the force in ..
Two long, parallel wires separated by 5.00 cm carry currents in opposite directions. Find the magnitude of the force per unit length
You are a professional frontier re-enactor who specializes in making lead shot. To do this you put 2 kg of ice into 2 kg of water, both at 0 C, into an insulated bucket.
A centrifuge is a device in which a small container of material is rotated at high speed on a circular path. such a device is used in medical laboratories, for instance, to cause the more dense red blood cells to settle through the less dense bloo..
A laser beam is incident on two slits with a separation of 0.10 mm, and a screen is placed 4.00 m from the slits. what is the wavelength of the laser light
The given information is that a basketball is shot from an initial height of 2.40 m with an initial speed 14m/s directed at an angle 37 degrees above the horizontal
A barber's chair with a person in it weighs 2100N. The output plunger of a hydraulic system begins to lift the chair when the barber's foot applies a force of 55N to the input piston. Neglect any height difference between the plunger and the piston. ..
A straight horizontal garden hose 22.0 m long with an interior diameter of 1.10 cm is used to deliver 20oC water at the rate of 0.470 liters/s.
Consider a roller coaster as it travels near the bottom of its track, what is the radius of curvature of the track
a parallel-plate air capacitor has a capacitance of 500pf and a charge of magnitude 0.250uc on each plate. the plates
If 50.0cm of copper wire (diameter = 1.0mm) is formed into a circular loop, at what rate is thermal energy generated in the loop
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