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a hydraulic lift in a mechanics garage has an input piston of area 0512 m2 and an output piston of area 1069 m2 what
a gas at 250k and 15atm has a molar volume 12 smaller than calculated from the perfect gas law calculate a the
in the figure a physical pendulum consists of a uniform solid disk of radius r 566 cm supported in a vertical plane by
calculate the composition of the following two buffer solutions each buffer is to begin with 010m ethanolamine pka 950
it is claimed that a black hole is so strong in its gravitational pull that even light cannot escape from it however if
a high fountain of water is located at the center of a circular pool as in the figure below not wishing to get his feet
use coulombs law f kq1 q2 d2 to calculate the electric force on an electron q - 16 times 10- 19c exerted by a single
an object undergoes simple harmonic motion in the x direction its position is given by xa sin0497 t 432 where the
a juggler throws a ball straight up into the air and it takes 420 seconds to reach its peak how many seconds will it
about 70 million tons of paper are used per year in the us if the us population is 3016 million people how many
a power cycle operates between a lakes surface water at a temperature of 300l and water at a depth whose temperature is
a prospector finds a solid rock composed of granite rho 2560 rm kgm3 and gold the volume of the rock is 345times104rm
15 pounds of water within a piston-cylinder assembly execute a carnot power cycle during isothermal expansion the water
gallium-68 decays by positron emission with a half-life of 683 min how much 68ga remains from a 100 mg sample after 683
a duck is floating on a lake with 27 of its volume beneath the water what is the average density of the
the plates of a parallel plate capacitor are d mts apart at t0 an electron is released at the bottom plate with a
a 180-kg object attached to a spring moves without friction b 0 and is driven by an external force given by the
consider a reservoir with a diameter of 450 m and a depth of 10 m a how many liters of 010 m naf should be added to
the rydberg constant is 1096776 x 107 m-1a what is the wavelength of the first balmer line j2 k3 for hydrogen z1b what
when a person inhales air moves down the windpipe at 15 cms the average flow speed of the air doubles through a
air in a piston-cylinder device is compressed from 25degc and 100 kpa to 500 kpa during a polytropic process for which
you want to construct a simple pendulum with a period of 2 secondsa what length should it haveb if you take your
certain stars are thought to collapse at the end of their lives combining their protons and electrons to form a neutron
suppose we have a gas in thermal equilibrium at temperature t each molecule of the gas has mass m a what is the ratio
an object 0600cm tall is placed 165cm to the left of the vertex of a concave spherical mirror having a radius of