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A straight, non conducting plastic wire 7.50cm long carries a charge density of 130nC/m distributed uniformly along its length. It is lying on a horizontal tabletop.
Part C If the wire is now bent into a circle lying flat on the table; discover the magnitude and direction of the electric field it produces at a point 5.00cm directly above its center.
a fluid at 690 kpa has aspecific volume of 0.25m3/kg and entersna process with a velocity of 150m/s. calculate the change in internal energy of the fluid
The maximum wavelength for which an electromagnetic wave can eject electrons from a platinum surface is 196 nm. When radiation by a wavelength of 156 nm shines on the surface, what is the maximum speed of the ejected electrons?
I place a 250 g mass on a spring. When it has finished oscillating, the spring has extended from 30 cm to 55cm. How do I calculate how far it has extended from its equilibrium? For the 250 g mass, what is the force exerted by gravity on this mass? Wh..
Estimate the initial speed of that car assuming a level road.What would be the equilibrium temperature when a 252 block of copper at 275 is placed in a 136 aluminum calorimeter cup containing 807 of water at 14.90.
The dialectric breakdown of air is approximately 3E6 V/m. This is the electric filed required to create a spark, What is the approximate voltage on the sphere at that instant
The low temperature in a freezer is -20 C, and the discharge temperature is 35 C. What is the maximum theoretical coefficient of performance
a 30kg child wants to use a 20kg board that is 6.0m long as a seesaw. since all her friends are busy, How far from her will the support be
A copper plate has a length of 0.12 m and a width of 0.10 m at25 degrees C. What is the change in the area of the plate as aresult of the increase temperature
question1a light ray of wavelength 589 nm is incident at an angle theta on the top surface of a block of polystyrene
A 0.67 kg person stands on a lightweight diving board supported by two pillars, one at the end of the board, the other 1.10 m away. Find the force exerted by the second pillar
A solid ball of mass M and radius R starts from rest and rollswithout slipping down a hill; Find the ball's speed at the bottom of the hill
a particle has a velocity u 0.84c in the labortory. the laboratory is itself moving with velocity v 0.77c relative to
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