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A Van de Graff generator that generates positive charges and a small sphere that you can hang close to the Van de Graff generator such that their centers are aligned in the horizontal plane. In at most 10 bullet points on one page, outline how you will determine the charges on both the Van de Graff generator and the hanging sphere, and the dielectric breakdown of air.
A bowling ball is released at the upper edge of a ramp that is inclined at an angle of 37o with the floor. Evaluate the total kinetic energy of the bowling ball at the bottom of the ramp
One string of a certain musical instrument is 76 centimeter long and has a mass of 8.75 gram. Find what frequency sound does this string produce in its fundamental mode of vibration
A moving 4.50kg block collides with a horizontal spring whose spring constant is 494 N/m. What is the speed of the block when it hits the spring
A 1.70 kg block is released from rest and allowed to slide down a frictionless surface and into a spring. The far end of the spring is attached to a wall.
question a 600-ev electron and a 300-ev electron trapped in a uniform magnetic field move in circular paths in a plane
A current is flowing through a circuit and you open a switch. Why might a spark jump across the switch opening? Explain what is happening? What property of the circuit would be relevant to this phenomenon?
A ball is dropped from height of 20 m above the surface of water in a lake. The refractive index of water is 4 / 3. A fish inside the lake, in the line of fall of the ball, is looking at the ball. At an instant, when the ball is 12.8 m above the wate..
You have a grindstone ( a disk) that is 84.0 kg, has a .307-mradius, and is turning at 104.0 rmp, How many turns wil the stone make before coming to rest
You're in an airplane that flies horizontally with speed 1000 km/h (280m/s) when an engine falls off. Neglect air resistance suppose it takes 30s for the engine to hit the ground.
a he ion is placed in an excited state so that its remaining electron occupies the n5 state. the electron can make a
Objects with masses of 295 kg and a 595 kg are separated by 0.300 m. Find the net gravitational force exerted by these objects
Two loud speakers separated by a distance of 2.0 m are in phase. Assume the amplitudes of the sound from the speakers are approximately the same at the position of the listener, For what frequencies is the signal a maximum
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