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During an isothermal expansion at temperature T, the volume of n moles of an ideal monatomic gas triples. What is the entropy change of the gas during the expansion?
Can a satellite be sent out to a distance where it will revolve about the earth with an angular velocity equal to that at which the earth rotates, so that it remains always above the same point on the earth? Must the plane of its orbit be an equat..
Ocean waves are traveling to the east at 4.9 meter per second with a distance of 21 meter between crests. Find with what frequency do the waves hit the front of a boat when the boat is moving westward at 1.2 m/s
in its daily prow of the neighborhood a cat makes a displacement of 100m due north followed by an 80m displacement east. what is the magnitude and direction of the velocity
A person with perfect pitch sits on a bus bench listening to the 445 Hz horn of an approaching car. If the person detects the frequency of 488 Hz, how fast is the car moving.
The data of 9 random samples of size 5 each collected on 9 different days are tabulated below. Draw X-bar, R, and s charts. Is the process in control? If it is not, remove the sample that is out of control, and redraw the charts.
In 2.0 minutes, a ski lift raises 4 skiers at constant speed to a height of 170 m. The average mass of each skier is 65.00 kg. What is the average power provided by the tension in the cable pulling the lift.
Testing Tennis Balls Tennis balls are tested by being dropped from a height of 2.5m onto a concrete floor. The 57g ball hits the ground, compresses, How fast is the ball moving just before it hits the floor
A person stands on a bathroom scale in a motionless elevator. Calculate the magnitude of the acceleration of the elevator
1 a student throws a ball vertically upward such that it travels 6.9 m to its maximum heightif the ball is caught at
A plane leaves Seattle, flies 85.0mi{rm mi} at 22.0°^circ north of east, and then changes direction to 54.0°^circ south of east. After flying at 121mi{rm mi} in this new direction, the pilot must make an emergency landing on a field. The Seat..
What volume flow rate will keep the pressures in the two horizontal pipes the same?
Knowing that each spring can act in tension or compression, determine the frequency of small oscillations of the system when the rod is rotated through a small angle and released.
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