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Air that initially occupies 0.144 m3 at a gauge pressure of 131.1 kPa is expanded isothermally to a pressure of 101.3 kPa and then cooled at constant pressure until it reaches its initial volume. Compute the work done by the air. (Gauge pressure is the difference between the actual pressure and atmospheric pressure.)
The Hubble Space Telescope orbits the Earth at an altitude of approximately 612 km. Its mass is 11,100 kg, What is the Hubble's total energy
A concave mirror used by a person who is shaving or applying makeup creates a virtual image of the face that is 1.60 times larger than the person's actual face, Determine the image distance and focal length
Communication satellites are placed in geosynchronous orbit, i.e., in circular orbit such that they complete one full revolution about the earth in one sidereal day.
A 1.18 m long sample from a roll of string is measured to have a mass of 1.04 g. find the wavelength of traveling waves on this string which have frequencies of 40.0 Hz and 5.00 Hz
The length of a simple pendulum is 0.65 m and the mass of the particle (the "bob") at the end of the cable is 0.26 kg. What is the angular frequency of the motion
This procedure has actually been used to "weigh" astronauts in space. A 42.5-\rm kg chair is attached to a spring and allowed to oscillate. What is the mass of the person
At the moment of release, a baseball player has a horizontal velocity component of 39 meters per second, At what angle was the ball released
A rock is thrown straight upward.it leaves the throwers hand at a height 1.5m above the surface of the earht with a speed 1.5m/s. what maximum height will the rock reach
A circuit containing a 5.5 H inductor has an alternating current supplied to it. If Irms is 5.1 A and Vp is 76 V, find the frequency of the signal
A block-spring system oscillates with an amplitude of 3.65 cm. The spring constant is 250 N/m and the mass of the block is 0.200 kg. Determine the mechanical energy of the system
A Tsunami has a speed of 56 m/s and a 250-km wavelength. How long do they have to run to safety
A garden plot must have a central planting area of length 13 m and width 8 m. There is to be a sidewalk around its edge of width w. what is the sidewalk width
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