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Dielectric constant of different materials Figure shows an experimental set-up to measure dielectric constant of different materials. In the experiment the surface area of plates is A = 0.05 m2 and the electric constant ?0 is 8.85´10-12 V×C/m a) In vacuum case, when the distance between two plates is 8.85 mm, the voltage on the capacitor is measured as V= 2 V. What is the charge on the capacitor ? If a plastic plate is placed between two conductors of the capacitor, the charge on the capacitor in this case is measured as 0.29 nC. What is the dielectric constant of the plastic ?
Two satellites, A and B, are in different circular orbits about the earth. The orbital speed of satellite A is thirty-four times that of satellite B. Find the ratio (TA/TB) of the periods of the satellites.
An average man can reach a maximum height of about 60 centimeter when jumping straight up from a crouched position. In terms of this jumper's weight W, find what force does the ground exert on him or her during the jump
An ideal gas at 17.8 °C and a pressure of 1.66 x 105 Pa occupies a volume of 3.22 m3. calculate How many moles of gas are present
Two coherent sound waves have intensities of 0.030 W/m2 and 0.092 W/m2 where you are listening. If the waves interfere constructively, what is the intensity that you hear
A block of weight 4.5 N is at rest on a horizontal table. An upward vertical force of 2.2 N is applied to the block by means of a string. What is the magnitude of the force exerted by the block
Why does when a projectile is launched so that its point of launch is lower than its landing point, the upward motion take longer than the downward motion.
A stainless-steel orthodontic wire is applied to a tooth that is out of line by 40 degrees. find the magnitude of the force on the tooth
On a part-time job, you are asked to bring a cylindrical iron rod of density 7800kg/m^3, length 91.5cm, obtain the weight of the rod
It is time to take on the role of a scientist again trying to develop a hypothesis so as to pursue a line of study. Do not look up the following, just use your imagination. Do not concern yourself with being wrong or right. The scientist is in the pu..
Two narrow parallel slits separated by 0.85 mm are illuminated by 600 nm light, and the viewing screen is 2.8 m away from the slits. What is the ratio of intensity at this point to the intensity at the center of the central bright fringe?
Two trucks that appear to be identical col-lide on an icy road. One was originally at rest. What can you conclude about the contents of the two trucks
While standing on a bridge 15.0 m above the ground, you drop a stone from rest. When the stone has fallen 3.20 m, you throw a second stone straight down. Which initial velocity should you give the second stone if they are both to reach the ground at ..
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