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A Hall probe serves to measure magnetic field strength. Such a probe consists of a poor conductor 0.165 mm thick, whose charge-carrier density is 1.35 × 1025 m-3. When a 1.65-A current flows through the probe, the Hall voltage is measured to be 3.77 mV. What is the magnetic field strength?
The nonconducting spherical shell is replaced with a thin metal spherical shell of diameter 8 cm and a charge of 1.00, What is the net electric field at 50 cm on the positive x axis
In the annual battle of the dorms, students gather on the roofs of Jackson and Walton dorms to launch water balloons at each other with slingshots, Find the direction of the balloon's inital velocity
2.0 kg ball moving with a speed of 3.0 m/s hits, elastically, an identical stationary ball as shown. If the first ball moves away with angle 30° to the original path,
An astronaut on a small planet wishes to measure the local value of g by timing pulses travelling down a wire which has a large object suspended from it. Imagine the wire of mass 3.80 g is 1.60 m long and has a 3.00-kg object suspended from it. A pul..
A steel rod is 3 cm in diameter at 25 C. A brass ring has an interior diameter of 2.992 cm at 25 C. At what common temperture will the ring just slide into the rod?
define the initial velocity of the ball.
Two positive charges of 7.40 micro-Coulombs are placed on a horizontal surface with a coefficient of static friction 0.72. If they are originally far apart.
An electric field of 490000 N/C points due west at the certain spot. What is the magnitude of the force that acts on a charge of -8.3 C at this spot.
Recently we were padding on a boat in a sea. Surprisingly we saw gleaming points in water during padding. Would you explain about this.
a typical maximum acceleration for a car is about 8 m/s^2, A sports car traveling at 20m/s accelerates at this rate for 1.25 seconds
What is the focal length of this mirror. If the object is 25 cm in front of the mirror, what is the image distance.
A piston, A, as shown below, has a diameter of 0.81 cm. A second piston, B has a diameter of 3.9 cm. conclude the force, F, necessary to support the 508.0 N weights in the absence of friction.
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