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a) A single charged positive ion moves with a velocity of(2i+j-k) 10^3 m/s in a region of space where the magnetic field is given as (0.6i +0.8j-0.4k) T. Discover the magnitude of the magnetic force exerted on the ion.
b) A proton (charge, +e = 1.6 x 10^-19 C), moving at a speed of 3 x 10^5 m/s in a magnetic field, feels a zero force when this proton moves horizontally toward the south. But, the proton experiences a horizontal force of 6.0 x 10^-14 N in a direction toward the east when it moves vertically downward inside the field. Discover the magnitude and direction of the magnetic field in the region.
A +45?C point charge is placed 42cm from an identical +45?C charge. How much work would be required for an external force to move a +0.70?C test charge from a point midway
A 1200 kg car carrying four 84 kg people travels over a rough washboard dirt road with corrugations 4m apart which causes the car to bounce on its spring suspension.
two charges are placed on the x axis. one charge q1 12.5 microc is at x1 3.0 cm and the other q2 -15 microc is at x2
The time-varying current in an LC circuit where C = 11.9 µF is given by i(t) = (1.25 A) sin (1310t), where t is in seconds. What is the total energy of the circuit
A radioactive isotope has an activity of 9.32×104 Bq initially. After 3.55 hours the activity is 6.71×104 Bq. What is the half-life of the isotope?
A speaker fixed to a moving platform moves toward a wall, emitting a steady sound with a frequency of 225 Hz. How fast should the platform move for the person to detect a beat frequency of 1.00 Hz
A student has built a 20-cm-long pinhole camera for a science fair project. She wants to photograph the Washington Monument, How far should she stand from the Washington Monument
in a certain thermal reactor fueled with partially enriched uranium 13 of the fission neutrons are absorbed in
the workman wants to push a box up a 20.0 degree incline. if it takes 70 newtons of force to start the box moving how
A child's helium-filled balloon escapes at sea level and22oC. When it reaches an altitude of 4000 m, what is the ratio of the initial volume to the final volume
A physics professor is pushed up a ramp inclined upward at an angle 35.0^\circ above the horizontal as he sits in his desk chair that slides on frictionless rollers. The combined mass of the professor and chair is 84.0kg . He is pushed a distance ..
What is the net electric force acting on particle.
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