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In a Hall experiment a conducting strip of thickness d= 100 um is placed in a magnetic field B = 0.05 T. The magnetic field is perpendicular to thr direction of the strip along which there is a 10-A current. What is the Hall voltage measured across ghe strip if the charge carrier density is 2.5 x 10^28 m^3 in this material?
a particle with speed v0 and impact parameter b starts far away from a planet of mass m. a. starting from scratch find
As a baseball is being caught, its speed goes from 25 to 0 m/s in 0.007 seconds. What is the force acting on the ball
The buckets have an initial acceleration of 4m/s upward. Find the tension in each of the ropes during this acceleration. After the initial acceleration the buckets move upward with constant velocity. Find the tension in each of the ropes in this cas..
suppose that a 70.0kg box is pulled by 400N firce at an angle of 30 degree to the horizontal. The coefficient of sliding friction is 0.500. find the acceleration of the box
Given: Mearth = 5.98 × 1024 kg Rearth = 6.37 × 106 m A satellite of mass 649 kg is in a circular or- bit at an altitude of 564 km above the earth’s surface. Because of air friction, the satellite eventually is brought to the earth’s surface, it hi..
Find the ratio of the intensities of an earthquake P wave passing through the Earth and detected at two points 17 kilometer and 43 kilometer from the source, Determine what is the ratio of the amplitudes
a 100 MeV particle decays into two particles. one of these two particles has a mass of 10 MeV and a speed of 3/5. a) what are the mass and speed (in the initial particle rest frame) of the second particle
You are on an airplane traveling 30° south of due west at 140 m/s with respect to the air. What is the speed of the plane with respect to the ground
a cylindrical resistor of radius 1.0 mm and length of 1.0 cm has resistance of 10 ohms. calculate the uniform current density in the resistor when the power of the resistor is 1 watt
A long string is moved up and down with simple harmonic motion with a frequency of 42 Hz. The string is 543 m long and has a total mass is 47.2 kg. The string is fixed at both ends. If the string is fixed at a length of 28 m we find a third harmon..
A 59.00kg skier encounters a dip in the snow's surface that has a circular cross section with a radius of curvature of 12-m. If the skier's speed at point A is 7.0 m/s, what is the normal force exerted by the snow on the skier at point B? Ignore f..
If a projectile is launched vertically from the Earth with a speed equal to the escape speed, how far from the Earth's center is it when its speed is 1/6 of the escape speed
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