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The internal energy of a gas is 553.J. The gas is compressed adiabatically, and its volume decreases by 105.cm3. If the pressure applied on the gas during compression is 2.69atm, what is the internal energy of the gas after the adiabatic compression?
q1. a 32 percent efficient electric power plant produces 900 mj of electric energy per second and discharges waste heat
An engineer has designed a machine to produce electricity by using the difference in the temperature of ocean water at different depths. what is the maximum efficiency of this machine
An orienter runs the following course: 100 m at 35 degrees, 150 m at 220 degrees, and 50 meters at 170 degrees. find the resultant displacement.
A helicopter is ascending vertically with the speed of 8 m/s. At a height of 65m above the Earth, a package is dropped from a window.
if the radius of curvature of the concave mirror is 15 cm, what is the position,nature and magnification of the image
Assume, instead, that the observer had been moving away from Earth with a speed of 0.80c. How much time would observer have measured for the car to be filled in this case.
A photon, a packet of electromagnetic radiation, carries both energy and momentum. Consider a photon with a wavelength of 457 nm in vacuum. What is the momentum of the photon
A small ball of mass 0.60 kg is attached to one end of a 1.15 m long massless rod, and the other end of the rod is hung from a pivot
If a person exerts 44 N of force on the back of a seat while stopping in 0.4 seconds, what is the impulse on the seat back
An air traffic controller has two aircraft on radar. The first is at an altitude of 0.5 km, a horizontal distance of 3 km measured along the ground to the point directly underneath the plane, and a bearing of 115° west of north.
A 48.9 g ball of copper has a net charge of 3.0 µC. What fraction of the copper's electrons have been removed
A small mailbag is released from a helicopter that is descending steadily at 1.75 m/s. After 5.00 s, what is the speed of the mailbag
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