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A sample of 3.0 grams of an ideal gas at 127°C and 1.0 atmosphere pressure has a volume of 1.5 liters. Which of the following expressions is correct for the molar mass of the gas? The ideal gas constant, R, is 0.08 (L-atm) / (mole K).
The Doppler effect using ultrasonic waves of frequency 2.21×106 is used to monitor the heartbeat of a fetus. calculate the maximum velocity of the surface of the beating heart
Tarzan swings on a 28.2 m long vine initially inclined at an angle of 20 degrees from the vertical. A) What is his speed at the bottom of the swing if he starts from rest?
Now, a second resistor R2 of 3.2x10^5 ? is connected in parallel to the existing resistor in the circuit, What will be the new time constant
Electrons are ejected from a metallic surface with speeds ranging up to 4.5 105 m/s when light with a wavelength of ? = 625 nm is used. What is the work function of the surface
A light rail train going from one station to the next on straight section of the track accelerates from rest at 1.4 m/s^2 for 15 second. Calculate the distance between the stations
A man of mass M1 = 81 kg is standing on a M2 = 6960 kg railroad flatcar that rolls without friction to the right with speed 3.6 m/s. Calculate the change in velocity (in m/s) of the flatcar, if the man runs to the left so that his speed relative t..
3 mol of an ideal gas at 20 °C and at 1 bar is added an amount of heat of 1 kJ in a reversible isotherm expansion process. What is volume of the gas before and after the process?
The air in the interior of the submarine is at 1 atmosphere pressure. Chuck tries to push the hatch open, How much force must Chuck apply to push the hatch open
When an 82.0-kg adult uses a spiral staircase to climb to the second floor of his house, his gravitational potential energy increases by 2 x 10^3 J. By how much does the potential energy of a 17 kg child increase when the child climbs a normal sta..
What is the electric flux through the same square surface if the normal to the surface makes a 50o angle with the y axis and an angle of 90o with the z axis?
In a physics lab experiment for the determination of moment of inertia, a team weighs an object and finds a mass of 2.98 kg. They then hang the object on a pivot located 0.163 m from the object\'s center of mass and set it swinging at a small ampl..
How much magnetic potential energy is dissipated when the magnetic field is quenched in this way? Express your answer with the appropriate units. U^B=1.3 x10^6 J
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