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An infinite plane of charge with surface charge density ?1 = 3.7 µC/m2 is parallel to the xz plane at y = -0.8 m. A second infinite plane of charge with surface charge density ?2 = -1.1 µC/m2 is parallel to the yz plane at x = 1 m. A sphere of radius 1 m with its center in the xy plane at the intersection of the two charged planes (x = 1 m, y = -0.8 m) has a surface charge density ?3 = -4.5 µC/m2. Find the magnitude and direction of the electric field at the following locations on the x axis.(a) x = 0.4 mE =_________?______________ N/C
A fan at a rock concert is 30.0 m from the stage, and at this point the sound intensity level is 109dB. Sound is detected when a sound wave causes the tympanic membrane (the eardrum) to vibrate . Typically, the diameter of this membrane is about 8..
Find the force P that must be applied to a piston of area10.10cm^2to produce sufficient fluid pressure to support a car weighing 11,301N by means of a column of fluid of cross sectional area280cm^2
To test the quality of a tennis ball, you drop it onto the floor from a height of 4.00 m. What is the magnitude of its average acceleration during the contact with the floor
A 305 turn solenoid has a radius of 7.00 cm and a length of 24.0 cm. Find the inductance of the solenoid
A thin spherical copper shell of radius 9.5 cm carries an excess charge of -4.2 nC. How many excess electrons are on the outer surface of the shell
A certain superconducting magnet in the form of a solenoid of length 0.520 m can generate a magnetic field of 9.10 T in its core when its coils carry a current of 80 A
Because of air resistance a constant torque exerted on the system to keep it spinning at that rate. Assuming that the air exerts a miniscule force on the stick (but a significant force on the ball), identify the force the air exerts on the ball.
A 22.5-kg rock is sliding on a rough, horizontal surface at 9.50 m/s and eventually stops due to friction. What average power is produced by friction as the rock stops
(a) In what direction are the electrons deflected? toward the negative plate toward the positive plate (b) By how much are the electrons deflected after passing through these plates?
An ideal gas's initial conditions are 1 mol, a pressure of 271.7 kPa, an internal energy of 624 J and a volume of 0.8 L. The gas is allowed to expand quasi-statically at constant pressure to a volume of 6.9 L. It is then cooled at constant volume unt..
A 10.0 g object moving to the right at 15.0 cm/s makes an elastic head-on collision with a 15.0 g object moving in the opposite direction at 34.0 cm/s
A golfer tees off on level ground, giving the ball an initial speed of 38.5 m/s and an initial direction of 36.0° above the horizontal. (a) How far from the golfer does the ball land? (Neglect air resistance.)
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