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A flat 136-turn current-carrying loop is immersed in a uniform magnetic field. The area of the loop is 6.15 cm2 and the angle between its magnetic dipole moment and the field is 53.7°. Find the strength of the magnetic field that causes a torque of 2.99 × 10-5 N·m to act on the loop when a current of 2.75 mA flows in it.
You need to make an ac generator with a sinusoidal output of 14.0 V amplitude and frequency 50 Hz. At what angular frequency should the coil be rotated
A person pushes a 16.0 kg shopping cart at a constant velocity for a distance of 30.0 m. She pushes in a direction 26.0° below the horizontal. Determine the work done by the gravitational force
the wheels of an automobile are locked as it slides to a stop from an initial speed of 30.0 m/s. how far does it take the car to stop
A force of 250 N is applied to a hydraulic jack piston with a0.1m diameter. how far doesthe output piston move per stroke
A space explorer A sets off at a steady 0.95c to a distant star. After exploring the star for a short time, he returns at the same speed and gets home after a total absence of 80 years (as measured by earth-bound observers). How long does A's clock s..
In order to view the craters of the Moon, you construct a refracting telescope from a lens with focal length 92.3 cm as its objective and a 14.3-cm focal length lens as its eyepiece
Suppose unpolarized light of intensity 150 W/m^2 falls on the polarizer at an angle 30. What is the light intensity reaching the photo cell
A diffraction grating is made up of slits of width = 300 nm with separation = 1150 nm. The grating is illuminated by monchromatic plane waves of wavelength ? = 560 nm at normal incidence. How many maxima are there in the full diffraction pattern? Wha..
question the tallest spot on earth is mt. everest which is 8857 m above sea level. if the radius of the earth to sea
two identical containers are filled to equal depths. one is filled with corn syrup (n=1.48), the other with ethyl alcohol (n=1.36). which container appears to have the greater depth
A Carnot air conditioner takes energy from the thermal energy of a room at 70 degrees F and transfers it as heat to the outdoors,which is at 96 degrees F. For each joule of electric energyrequired to operate the air conditioner, how many joules are r..
At the end of a factory production line, boxes start from rest and slide down a 30 degrees ramp 5.4 m long. If the slide is to take no more than 3.3 s, what is the maximum coefficient of friction between the box and the slide?
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