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a gas sample is connected to a closed end manometer the difference in mercury levels in the two arms is 115mm what is
an accelerating voltage of 252 x 103 v is applied to an electron gun producing a beam of electrons originally traveling
a massless spring of constant k 1000 nm is fixed on the right side of a level track a block of mass m 150 kg is
an air duct in a building has a radius of 8 cm and a length of 17 m what pressure is required to push air through the
the isothermal compressibility of copper at 293k is equal to 725x10-7 bar-1 what pressure must be applied to copper at
a tank of water sits at the edge of a table of height 10 m the tank springs a very small leak at its base and water
a disk shaped grindstone of mass 30 kg and radius 8 cm is spinning at 600 rpm after the power is shut off the
5000 ml of 0140 m naoh is added to 625 ml of 0200 m weak acid ka 895 x 10-5 what is the ph of the resulting
the blood flow rate through the aorta is typically 97 cm3s and a typical adult has about 52 liters of blooda how long
light from a laser strikes a diffraction grating that has 5 300 grooves per centimeter the central and first-order
a chemistry student needs 400 ml of pentane for an experiment by consulting the crc handbook of chemistry and physics
two metal blocks are attached by a cable as shown in the figure below and are submerged at rest near the surface of a
a 5 kg point mass and a 4 kg point mass are attached to the end of a rod that has a mass 1 kg and a length of 1 meter
you want to build a raft that can hold you 76 kg plus some supplies 39 kg for a long trip you decide to make the raft
allicin is the compound responsible for the characteristic smell of garlic an analysis of the compound gives the
light of wavelength 600 102 nm passes through a slit of width 0210 mm a find the width of the central maximum on a
suppose you have a spring-loaded projectile launcher aim it straight upwards compress the spring 1 cm then launch a
2fe2o3 yields 4fe 3co2given that balanced equation 2617 grams of fe2o3 are mixed with 6970 grams of carbon how many
a sports car with a mass of 1000 kg crashes into the rear an suv with amass of 2400 kg that is stopped at a red light
a rigid ie constant volume non-conducting ie perfectly insulated no heat losses or gain tank with a volume of 33 m3
an engineer is given the job of designing the water system for a tall building he decides to locate the pumps at ground
when heated 817 g of a salt of hydrated magnesium chloride mgcl2 xh2o where x represents the number of moles of h2o per
consider a rectangular swimming pool of depth 1 m with a width and length of 16 m what is the total force on the bottom
a ldquourdquo shaped tube with a constant radius is filled with water and oil as shown the water is a height h1 037 m
a thin rod of mass m and a length l rests on a frictionless table this rod is stuck at a point l4 from its center of