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2.5 moles of ideal gas are placed in 50 L tank at temperature T=293 K. Find pressure in the tank. 1/4 of the gas escapes the tank after a while. find the temperature that is needed to maintain the same pressure in the tank after 1/4 of the gas escapes.
A 31-kg girl is bouncing on a trampoline. During a certain interval after she leaves the surface of the trampoline, How high does she rise during this interval
A 0.50-kg block attached to an ideal spring with a spring constant of 80 N/m oscillates on ahorizontal frictionless surface. When the spring is 4.0 cm longer than its equilibrium length, thespeed of the block is 0.50 m/s. T
For each of these cases, decide whether or not the motion explained is an example of acceleration: An airplane starting to roll down the runway as it takes off. An airplane skidding to a stop on a runway. A football kicked straight up, at the peak of..
White light illuminates an oil film on water. Viewing it directly from above, What is the refractive index of the oil
What is the physics behind everyday sayings
Under the influence of its drive force, a snowmobile is moving at a constant velocity along a horizontal patch of snow. find the distance in which the snowmobile coasts to a halt
A block of mass A=.75kg moves with a constant speed v0=5.2 m/s and approaches another block which is at rest and attached to an ideal spring with the force constant k=2.5 N/m. Determine the amplitude of oscillations of the 2 blocks
a winch is used to drag a 295n crate up a ramp at a constant speed of 84.0 cms by means of a rope that pulls parallel
A standing wave is set up in a 200-cm string fixed at both ends. The string vibrates in 5 distinct segments when driven by a 120-Hz source. What is the fundamental frequency for the string
consider a conical pendulum that consists of a bob on one end of a string of negligible mass with the other end of the
An eyeglass lens with a power of + 2.9D allows a farsighted person to read a book held at a distance of 29cm from her eyes. At what distance must she hold the book to read it without glasses
Two satellites are in circular orbits around a planet that has radius 9.00x10^6m. What is the orbital speed of this second satellite
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