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Using the symmetry of the arrangement, decide the direction of the electric field at the center of the square at the location of charge q in the figure below, given that qa = qb = –2.65 ?C and qc = qd = 2.65 ?C. Compute the magnitude of the electric field at the location of q, given that the square is 5.65 cm on a side.
At the equator, near the surface of the Earth, the magnetic field is about 34.0 µT northward, and the electric field is about 290 N/C downward in fair weather. Discover the gravitational, electric, and magnetic forces on an electron by instantaneous ..
What is the kinetic energy of a 0.5-kg object moving at a constant speed of 2 m/s, A physics-110 student needs 500 W of Power to climb two flights of staris to get to the physics class room in 40 s
Every day our Earth receives 1.55×1022 J energy from the Sun. If we were able to use 1.05 percent of this energy to accelerate spaceships, then how many missions would be possible in one year
What is the acceleration of a rising hot-air balloon if the ratio of the air density outside the balloon to that inside is1.22? Neglect the mass of the balloon fabric and the basket.
Consider a fusion reaction in which two deuterium nuclei fuse to form a tritium nucleus and a proton, How much energy is released in this reaction
Suppose a cylinder is resting on a horizontal platform on plane x-y with its axis parallel to the y axis, What is the motion (acceleration:linear as well as rotational) of the cylinder
A 0.500 kilogram football is thrown toward the east with a speed of 10.0 m/s. A stationary receiver catches the ball and brings it to rest in 0.020 second. Find the average force exerted on the receiver
the drive chain in a bicycle is applying a torque of .850 Nm to the wheel of the bicycle. What is the angular acceleration of the wheel
Light of wavelength 631 passes through a diffraction grating having 485. What is the angle of the bright spot farthest from the center
A whistle of frequency 520 Hz moves in a circle of radius 80.0 cm at an angular speed of 12.0 rad/s. What are the lowest and highest frequencies heard by a listener a long distance away from the whistle and at rest with respect to the center of th..
A 200-g hockey puck is launched up a metal ramp that is inclined at a 30 degree angle. What speed does the puck have when it slides back down to its starting point
Sound with a frequency of 431 Hz travels through steel. A wavelength of 11.27 m is measured. determine the speed of the sound in steel
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