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1. Helium is compressed isothermally from 121 kPa(abs) to 301 kPa(abs). Determine the entropy change associated with this process.
2. Air at 14.7 psia and 70 °F is compressed adiabatically by a centrifugal compressor to a pressure of 100 psia. What is the minimum temperature rise possible? Explain.
A tennis player receives a shot with the ball (0.060 0 kg) traveling horizontally at 55.5 m/s and returns the shot with the ball traveling horizontally at 36.0 m/s in the opposite direction. find the impulse delivered to the ball by the tennis racq..
The lowest outdoor temperature ever recorded on Earth was %u2212128.6 %u25E6F, recorded at Vostok Station, Antarctica, in 1983. What is this temperature on the Kelvin scale
Suppose electrons in a TV tube are accelerated through a potential difference of 2.00 104 V from the heated cathode, At what speed would the electrons impact the phosphors on the screen
What is the time constant for the discharging of the capacitors in the circuit
As a summer intern for a microscope company, you are designing a compound microscope for a client that provides you with the following information. determine the barrel length needed for the microscope
A free electron has a kinetic energy of 2.56 KeV. What is the De Broglie wavelength of the electron
An atwood machine consists if a 1.020kg mass and a 1.000kg mass connected by a light string over a frictionless pulley. What is the acceleration of the system.
A film of transparent material 120 nm thick and having refractive index 1.25 is placed on a glass sheet having refractive index 1.50. Determine the longest wavelength of light that interferes destructively when reflected from the film.
The outside mirror on the passenger side of a car is convex and has a focal length of -5.4 cm. Relative to this mirror; a truck traveling in the rear has an object distance of 17 m. discover (a) the image distance and (b) the magnification of the mir..
An electron has an initial velocity of 2.00 ? 106 m/s in a uniform 4.00 ? 105 N/C strength electric field, How far does the electron travel before coming to rest
A tank with a volume of 0.150 m contains 27.0 degrees celcius helium gas at a pressure of 100 atm. How various balloons can be blown up if each filled balloon so a sphere 30.0 cm in diameter at 27.0 and absolute pressure of 1.20atm .
two small plastic balls hang from the threads of negligible mass. each ball has a mass of 0.14 g and a charge of
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