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A charge q1 = - 48.0 μC is placed at 0.6 meter on +x axis and the other charge q2 = 8.0 μC is placed at =0.3 meter on +y axis. Obtain the magnitude and direction of electrostatic force experienced by charge q3 = 2.0 μC lying at the origin.
A very large plane of charge is oriented horizontally and has a constant charge distribution over the plane. A small insulating ball has charge +8.78 nC and mass 0.076 g. If the levitates 2.62 cm beneath the plane, and remains stationary, what is the..
A 0.20 kg aluminium plate with an initial temperature of 20 degrees c slides down a 15.00m long surface that is inclined at 30 degrees to the horizontal.
A satellite of mass 240 kg is in a circular orbit of radius 8.68 x106 m around a planet. If the period is 9030 s, what is the mechanical energy of the satellite
Two rubber bands cause an object to accelerate with acceleration a. How many rubber bands are needed to cause an object with half the mass to accelerate five times as quickly
A heat engine has an efficiency of 61.5% and it exhausts 7500 J of waste heat into the environment. How much work is performed by the previous heat engine
A long thin rod of mass m = 100 g and length L = 1 m is pivoted about one end and oscillates in a vertical plane. Find the period (in s) of small oscillations
A wheel is spinning at 52 rad/s. Over a period of 15 second it is spinned up to 362 rad/s. Find how many revolutions it made while spinning up
The earth has a vertical electric field with a magnitude of approximately 100 V/m near its surface. What is the magnitudeof the potential difference between a point on the ground and pointon the same level as the top of the Washington Monument (555 f..
A proton accelerates from rest in a uniform electric field of650 N/C. At some time later, its speed is1.40 x 106 m/s. What is the magnitude of the acceleration of the proton?
A uniform spherical shell of mass M = 2.5 kg and radius R= 18.0 cm rotates about a vertical axis on frictionless bearings. A mass less cord passes around the equator of the shell, over a pulley of rotational inertia I = 3.63×10-3kg m2 and radius r = ..
Astronomers discover a binary star system that has a period of87.0 days. The binary star system consists of two equal-mass stars,each with a mass twice that of the sun, that rotate like a dumbbellabout the center of mass at the midpoint between them ..
The drawing shows three materials, a, b, and c. A ray of light strikes the a–b interface at an angle that now hardly exceeds its critical angle of 40.0°. The reflected ray then strikes the a–c interface at an angle of incidence that now barely exceed..
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