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Two 8.0mm×8.0mm electrodes with a0.10-mm-thick sheet of Mylar between them are attached to a 9.0V battery. Without disconnecting the battery, the Mylar is withdrawn. (Very small spacers keep the electrode separation unchanged.) Dielectric constant for Mylar is ?Mylar=3.1.
Part A What is the charge before and after the Mylar is withdrawn?
Part B What is the electric field before and after the Mylar is withdrawn?
It is 155cm from your eyes to your toes. You're standing 190cm in front of the tall mirror. How far is it from your eyes to the image of your toes.
What is the result of mixing 80g of ice at -20 degrees Celsius, into a 200g of water at 20 degrees Celsius? What fraction of the ice cube melts
Hearing damage may occur when a person is exposed to a sound intensity level of 90.0 dB for a period of 9.00 hours, How much sound energy is incident on the eardrum during this time
A 1.9cm × 1.9cm × 1.9cm box with its edgesaligned with the xyz-axes is in the electric field E? =(360x+150)i^N/C, where x is in meters
Find the approximate mass of the dark and luminous matter in the Milky Way galaxy. Assume the luminous matter is due to approximately 1011 stars of average mass 1.5 times that of our sun
A cable supports a uniformly distributed load. The max tension that the cable can withstand is 41 x 10^6 N. What min length of cable is needed
The Space Shuttle travels at a speed of about 7.6 × 103 m/s. The blink of an astronaut's eye lasts about 110 ms. How many football fields (length = 91.4 m) does the Shuttle cover in the blink of an eye
A soccer player kicks a ball from ground level with a velocity of 23.5 m/s 38.20 above the horizontal and it lands at ground level. determine the "hang time" of the ball
A kayaker needs to paddle north across a 100m wide harbor. The tide is going out, creating a tidal current that flows east at 2 m/s. The kayaker can paddle with a speed of 3 m/s.
The blades in a blender rotate at a rate of 6400 rpm. What is the angular acceleration as the blades slow down
A monatomic ideal gas at high temperature T in a discharge tube has a triply degenerate excited state at an energy e above the ground state, Find the ratio population of the excited state to that of the ground state
A camera is equipped with a lens with a focal length of 23 cm. how far from the film should the lens be placed
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