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A one kilomole of an ideal gas under goes a reversible isothermal expansion from a volume of 5 liters to a volume of 10 liters at a temperature of 20 degrees Celsius What is the change in entropy of the gas? and of the Universe?
Blood circulating from the heart to the hands and back to the heart travels a distance of about 1.9 m in 42 s. Find the average speed of the blood
Consider a spherical balloon filled with helium, with adensity of 0.21 kg/m3. What must the radius of the balloon be inorder to lift a load of 1.5E2 kg
q1. a car at the indianapolis-500 accelerates uniformly from the pit area going from rest to 325 kmh in a semicircular
Light of wavelength 720nm falls on two slits and produces an interference pattern in which the fourth-order fringe is 46mm, What is the separation of the two slits
a 60.0-kg woman balances on one heel of a pair of high-heeled shoes. if the heel is circular and has a radius of 1.00
you are on a standard elavator . you are holding a fishing rod with a fish you just caught on the fishing line .the fish has a mass of 4kg. how much tension is in the fishing line
q1. two thin wedding bands each with mass m and radius r are welded together so that each ring passes through the
It takes 2.80 s for a small ball with a mass of 0.060 kg released from rest from a tall building to reach the ground. Calculate the height from which the ball is released
Two loudspeakers in a 20°C room emit 629 Hz sound waves along the x-axis, If the speakers are out of phase, what is the smallest distance between the speakers for which the interference of the sound waves is constructive
Find the direction and magnitude of the net electrostatic force exerted on the point charge q2 in the figure below. Let q = +2.4 µC and d = 35 cm
A scuba diver at a depth of 42.0 m below the surface of the sea off shores of Panama City, where the temperature is 7 °C, releases an air bubble with volume 18 cm3.
You launch a 5kg ball from a height of 1 meter. Find the speed of the ball and its kinetic energy at the top of its trajectory, find the velocity and speed of the ball when it reaches the ground
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