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A sample of helium behaves as an ideal gas as it is heated at fix pressure from 273 K to 343 K. If 23.0 Joule of work is done by the gas through this process, find what is the mass of helium present? mg
A certain loudspeaker (assumed to be a point source ) emits 30.0 W of sound power. Calculate the power intercepted by the microphone
You put a diode in a microelectronic circuit to protect the system in case an untrained person installs the battery backward. what would be the magnitude of the current in the diode
In 1898, Pierre & Marie Curie isolated about 10mg of radium-226 from eight tons of uranium ore. How many radium nuclei would have decayed during this time
NASA sends satellites to Mars by placing the satellite in a Keplerian orbit (around the sun) such that the perihelion is at the radius of the Earth's orbit (1 AU) and the aphelion is at the radius of Mars's orbit (1.52 AU). Most of the trip to Mar..
At what height above the earth is the acceleration due to gravity 45% of its value at the surface, What is the speed of a satellite orbiting at that height
1. a spring with negligible mass stretches 34.0 cm when a 144 g gram mass is suspended from it. now inbspsuspend a
Elements that appear in the same column of the periodic table often share similar chemical properties. In the case of the alkaline earth metals, this is troublesome since the body treats calcium, calculate the path radius of the Ca ion
Two identical point charges (q = +1.50 x 10-6 C) are fixed at opposite corners of a square whose sides have a length of 0.570 m. Determine the speed of the test charge when it reaches the center of the square
A cylindrical aluminum rod, with an initial length of 0.8200 m and radius 1200.0 µm, is clamped in place at one end and then stretched by a machine pulling parallel to its length at its other end. Assuming that the rod's density (mass per unit volume..
The temperatre result in each measurement are listed below, write down the formula for mean and calculate the temperature mean value
A beam of unpolarized light of intensity26.0 W/m2 passes during a polarizing sheet. What is the electric field amplitude of the transmitted beam?
At time a grinding wheel has an angular velocity of 21.0. It has a constant angular acceleration of 26.0 until a circuit breaker trips at time = 1.6. From then on, the wheel turns through an angle of 435 as it coasts to a stop at constant angular dec..
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