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Integrated circuits are manufactured in vacuum chambers in which the air pressure is 6.00×10?11 mm of Hg. What are
(a) the number density and
(b) the mean free path of a molecule? Assume T = 18.0 C.
Consider the Earth and a cloud layer 900 m above the planet to be the plates of a parallel-plate capacitor. what is the maximum charge the cloud can hold
What is the direction of E for points. find the balls initial speed.
find out the angular speed after the grindstone has made.
The coefficient of friction between his clothes and Earth is 0.70. He slides so that his speed is zero just as he reaches the base.
Determine how many times greater heat loss occurs through a glass window thats 80.0 cm high, 70 cm wide, and 0.300 cm thick (k = 0.791 W/m°C) than a electrical supply line running outside to an exterior mounted light.
Two physical pendulums (not simple pendulums) are made from meter sticks that are suspended from the ceiling at one end. Determine the period of the wood pendulum
An alpha particle (the nucleus of a helium atom) consists of two protons and two neutrons. what is the strength of the magnetic field
A uniformly charged insulating rod of length 19.0 cm is bent into the shape of a semicircle. The rod has a total charge of -7.50 µC. Find the magnitude and direction of the electric field at O, the center of the semicircle. EO = N/C.
Landing on the Moon, a spacecraft fires its retrorockets and comes to a complete stop just 19m above the lunar surface. It then drops freely to surface.How long does it take to fall in seconds? What is its impact speed in meter per seconds.
A disk of radius 3.00 cm has a uniformly distributed charge of Q = 5.20 uC, Calculate the electric field on the perpendicular axis of disk
2 mol of a diatomic ideal gas expand adiabatically and quasi-statically. The initial temp of the gas is 300K, What is the final temp of the gas
A river flows due south with a speed of 2.00m/s{\rm m}/{\rm s} . A man steers a motorboat across the river, Find the horizontal component of the book's velocity
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