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Gas is confined in a tank at a pressure of 11.3 atm and a temperature of 22.5°C. If two-thirds of the gas is withdrawn and the temperature is raised to 63.0°C, what is the pressure of the gas remaining in the tank?
A 1350 kg roller coaster car starts from rest at a height H = 21.0 m above the bottom of a 15.0 m diameter loop. determine the downward force of the rails on the car
A "swing" ride at a carnival consists of chairs that are swung in a circle by 18.5 m long cables attached to a vertical rotating pole, Find the speed of the chair
On a banked race track, the smallest circular path on which cars can move has a radius of 109 m, Find the largest speed at which cars can move on this track without relying on frictio
question1a 27 kg chair initially at rest on a horizontal floor requires a 377 n horizontal force to set it in motion.
Calculate the amount of energy saved if all bulbs are replaced by CFL (spiral) bulbs (P=25W). Calculate the amount of natural gas (ft3) needed to provide the energy to keep the lights (long + regular) in the E391 lab
the speed of sound in helium is 965 m/s. if the density of helium is 0.179 kg/m^3, then what is the bulk modulus of helium
A 9.0*10^-2kg ice cube at 0.0 degrees celcius is dropped into a styrofoam cup holding .35 kg of water at 13 degrees celcius. Find the amount of ice (if any) remaining
The movement of the water because of the tides will give kinetic energy to the turbine blades, causing them to spin. In the calculations that follow ignore any frictional drag because of the seawater.
A 78 ohm resistor is connected in series with a 275 mH inductor and a 1 micro farad capacitor. Find the effective voltage V rms across the capacitor
A student is reading a lecture written on a blackboard. The lenses in her eyes have a refractive power of 53.90 diopters, How far is the blackboard from her eyes
For all parts, assume that the "island" refers to the point at a distance D from the point at which the package is released. Ignore the height of this point above sea level. Assume that the acceleration due to gravity is g = 9.80m/s^2. What is the..
To determine the muzzle velocity of a bullet fired from a rifle, you shoot the 3.71-g bullet into a 2.45-kg wooden block. find the velocity of the bullet on leaving the gun's barrel
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