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A liquid is used to make a mercury-type barometer, as described in section Pressure in a Fluid. The barometer is intended for spacefaring astronauts. At the surface of the earth, the column of liquid rises to a height of 2190mm, but on the surface of Planet X, where the acceleration due to gravity is one-fourth of its value on earth, the column rises to only 730mm.
PART A: Find the density of the liquid in kg/m^3.
PART B: Find the atmospheric pressure at the surface of Planet X.
A student of mass 33.5 kg wants to measure the mass of a playground merry-go-round, which consists of a solid metal disk of radius R = 1.50 m that is mounted in a horizontal position on a low-friction axle.
If a capacitor has opposite 5.3?C charges on the plates, and an electric field of 2.4kV/mm is desired between the plates, what must each plate's area be
A vertical spring of spring constant 115N/m supports a mass of 75kg. The mass oscillates in a tube of liquid. Estimate the damping constant b
By curving different isotopes through paths with different radii, a mass spectrometer can be used to purify a sample of mixed uranium-235 and uranium-238 isotopes. Assume that B = 5.00*10^-3 T, V = 55.0 V, and that each uranium isotope has a 5+ io..
To construct a solenoid, you wrap insulated wire uniformly around a plastic tube 14cm in diameter and 60cm in length, What is the total length of wire you will need to meet these specifications
You cool a 130.0g slug of red-hot iron (temperature 745 ?C) by dropping it into an insulated cup of negligible mass containing 70.0g of water at 20.0 ?C. What is the final mass of the iron and the remaining water
Calculate the positron and electron beam energy needed to create a Higgs boson (mass 125GeV) in the CMS system
A cylinder with a piston contains 0.250 mol of oxygen at 240000 pascal and 355 kelvin. The oxygen may be treated as an ideal gas. The gas first expands isobarically to twice its its original volume. It is y then compressed isothermally back to its..
On the Moon, the acceleration due to the effect of gravity is only about 1/6 of that on Earth. What is his weight as measured on the Moon
question1a 1.35 kg block is attached to a spring with spring constant 15.0 nm. though the block is sitting at rest a
In one of the original Doppler experiments a tuba was played on a moving flat train car at a frequency of 75 hz, What beat frequency was heard if the train car approached the station at a soeed of 10m/s
One of the first signs of sunburn is the reddening of the skin (called erythema). How many photons are incident on the skin in this amount of exposure
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