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Two small identical conducting spheres are placed with their centers 0.74 m apart. One is given a charge of 1.2 10-8 C, the other a charge of ?2.2 10-8 C.
(a) Find the electrostatic force exerted on one sphere by the other. magnitude N direction attractive repulsive
(b) The spheres are connected by a conducting wire. Find the electrostatic force between the two after equilibrium is reached, where both spheres have the same charge. magnitude N direction attractive repulsive
The wave function for a wave on a taut string is given by y(x,t)=(0.350m) sin (10pi(t)-3pi(x)+pi/4), What is the energy contained in each cycle
A square steel plate is 0:20 m on a side and 4:00 mm thick. Find the shear strain that results if a force of magnitude 8x10^4 N applied to two of the four long sides parallel to the sides
You can ignore air resistance. Explain how far from the point of firing does the other fragment strike if the terrain is level?
An automobile engine with an efficiency 0.21 dumps heat to the environment at the rate of 460 kW. What's its mechanical power output in W? What's its mechanical power output
Suppose a hockey puck slides down a frictionless ramp with an acceleration of 5.00 m/s2. What's the puck's new acceleration down the ramp
The nucleus of 8Be, which consists of 4 protons and 4 neutrons, is very unstable and spontaneously breaks into two alpha particles, What is the force between the two alpha particles
A stone is dropped from the top of a cliff. The splash it makes when striking the water below is heard 3.6s later. How high is the cliff
Light hits the surface of water (n = 1.33) at an incident angle of 25.0 degrees with respect to the normal line. What is the angle between the reflected ray and the refracted ray? The answer is 136.5 but I'm getting 18.5.
Consider an atom of sulfur (chemical symbol S), How many electrons does a neutral atom of sulfur have
A thin circular disk of radius R rotates with angular speed w, about an axis through the centre of the disc and perpendicular to the plane of the disc.
An initially neutral conductor contains a hollow cavity in which there is a -100 nC point charge. what is the charge on the inner wall of the cavity wall
The near point of a naked eye is 32 cm. When an object is placed at the near point and viewed by the naked eye, Determine the angular size of the image
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