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A large circular capacitor with a radius of 5 m is separated by 3 mm of air.
(a) What is its capacitance?
F
(b) Suppose 9 V is placed across the capacitor. What is the charge magnitude that builds up on the two plates?
C
The Earth's radius is about 4000 miles. Kampala, the capital of Uganda, and Signapore are both nearly on the Equator. What is the plane's angular velovity with respect to the Earth's durface
A 5.8 m diameter merry-go-round is rotating freely with an angular velocity of 0.90 rad/s. What is the angular velocity of the merry-go-round now
A light ray enters a rectangular glass slab (n = 1.5) at point A at an incident angle theta, what is the index of refraction of the unknown liquid
A drag racer starts her car from rest and accelerates at 10 m/s for the entire distance of 400m. What is the speed of the race car at the end of the run
A 40-kg pole vaulter running at 14 m/s vaults over the bar. Her speed while she is above the bar is 1m/s. Avoid air resistance, in addition to any energy absorbed by the pole, and determine her altitude as she crosses the bar.
R 134a flows at steady state through a horizontal pipe havingan inside diameter of 4 cm, entering as saturated vapor at -8degrees C with a mass flow rate of 17 kg/'min. Refrigerant vaporexits at a pressure of 2 bar.
Two metal balls A and B of negligible radius, connected by a taut nonconducting thread of length 1.30 m, are floating at rest on Space Station Freedom between two metal bulkheads.
For a certain change, the value of ëU is -2.37 kJ. During the change, system absorbs 650 joules. How much work did the system do.
a boy hears an eco of his own voice from a distant hill after 1s. The speed of the sound is 340m/s. What is the distance of the hill from the boy
A slide projector needs to create a 98.0cm -high image of a 2.20cm cm -tall slide. The screen is 304cm cm from the slide. What focal length does the lens need
An electron is in the fifth Bohr orbit of hydrogen. Calculate the time required for the electron to circle the nucleus
You're driving at speed V0 when you spot a stationary moose on the road, a distance 'd' ahead. Find an expression for the magnitude of the acceleration you need
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