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1. An air-filled capacitor consists of two parallel plates, each with an area of 7.06 cm2, separated by a distance of 1.28 mm. A 16.2 V potential difference is applied to these plates. Find the magnitude of the electric field between the plates. The permittivity of free space is 8.8542 × 10?12 C2 /N · m2.
2. Find the capacitance.
3. Find the magnitude of the charge on each plate.
A train 400m long is moving on a straight track with a speed of 84.30km/h. The engineer applies the brakes at the crossing and later the last car passes crossing with the speed of 17.7 km/h. suppose constant acceleration; conclude how long the tra..
A 40-kg girl is bouncing on a trampoline. During a certain interval after leaving the surface of the trampoline, kinetic energy decreases to 240J from 470J. How high does she rise during this interval? Avoid air resistance.
A boy shoots a BB gun horizontally at a target 15 m away. The gun is aimed directly at the center of the target, but the small metal BB hits 56 cm lower. avoid any air resistance, what was the initial speed of the BB.
A car travels at a constant speed around the circular track or a radius of 2.6 km. it goes around the track once in 360 seconds.
Two capacitors are connected in series. Let 3.40mF be the capacitance of first capacitor, 5.30mF the capacitance of the second capacitor, and Vab= 57.0 V the potential difference across the system. A)Calculate the charge on each capacitor. B)Calcu..
A collapsible plastic bag contains a glucose solution. If the average gauge pressure in the artery is 1.4 multiplied by 104Pa, what must be the minimum height, h, of the bag in order to infuse glucose into the artery? Suppose that the specific gra..
A stone is dropped from the roof of a building; 2.10s after that a second stone is thrown straight down with the initial speed of 18 m/s, and both stones hit the ground at the equal time. How long did it take for the first stone to hit the ground.
What was the speed of the car when the brakes were applied.
What tension in Newtons should a 50cm length of string support in order to whirl an attached 2000g stone in a circular path at 5 m/s.
Light is emitted by a sodium sample that is moving toward Earth with speed v. The wavelength of the light is 589 nm in the rest frame of sample. The wavelength measured in the frame of Earth is 537 nm. Find v.
This bat hears its own sound plus the sound reflected by the wall. Explain how fast should the bat fly in order to hear a beat frequency of 10.0Hz?
Starting from rest, you pull the string with a constant force F = 8 N along a nearly frictionless surface. At the instant while the center of the disk has moved a distance x = 0.12 m, a length d = 0.27 m of string has unwound off the disk.
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