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The electric field everywhere on the surface of a charged sphere of radius 0.130 m has a magnitude of 510 N/C and points radially outward from the center of the sphere.
(a) What is the net charge on the sphere?
(b) What can you conclude about the nature and distribution of charge inside the sphere?
A circular armature coil is used in a motor with a uniform magnetic field of 4.10 T. The coil has a diameter 60 cm, a resistance of 50 ?, how much current is flowing throught the motor
A bicycle wheel with a radius of 38 cm is given an angular acceleration of 2.80 rad/s2 by applying a force of 0.25 N on the edge of the wheel. What is the wheel's moment of inertia?
Determine the phase and group velocities for a monatomic lattice. Plot the velocities versus the wave vector k and give a brief discussion of their significance.
A grating has 776 lines per centimeter. Find out the angles of the first three principal maxima above the central fringe when this grating is illuminated with 603 nm light.
A rocket of mass 4.42 × 105 kg is in flight near earth's surface. Its thrust is directed at an angle of 65.3 ° above the horizontal and has a magnitude of 8.04 × 106 N. determine the direction of the rockets acceleration
A rescue helicopter lifts a 85.3-kg person straight up by means of a cable. calculate how much work done by the persons weight
What is the final temperature of the water?
A point charge with q1 = +1.9 C is located at x = ?3.0 m, y = 0, and a second point charge with q2 = +6.5 C is at x = +1.0 m, y = +2.0 m. (a) What is the force exerted by q1 on q2? magnitude N direction ° counterclockwise from the +x-axis (b) What..
At a certain instant a ball passes location m. In the next 4 seconds, the ball's average velocity is m/s. At the end of this 4 second time interval, what is the height y of the ball?
An outside loudspeaker (considered a small source) emits sound waves with a power output of125W. Find the intensity10.5m from the source.
A certain person in a typical conversation speaks at a sound level of 63 dB. The music at a certain rock concert reaches a sound level of 110 dB. How many times as great is the intensity of the music?
A lead bullet initially at 26.4oC melts just upon striking a target. calculate the speed of the bullet upon impact
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