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When a mercury manometer is connected to a gas main, the mercury stands 48.9 cm higher in the tube that is open to the air than in the tube connected to the gas main. A barometer at the same location reads 75.6 cm Hg. Determine the absolute pressure of the gas in cm Hg.
___cm Hg
A child loses his balloon, which rises slowly into the sky. If the balloon is 23 cm in diameter as the child loses it, what is its diameter at the following altitudes? Assume that the balloon is very flexible and so surface tension could be neglec..
The distance between the first and fifth minima of a single-slit diffraction pattern is 0.40 mm with the screen 50 cm away from the slit, Calculate the angle of the first diffraction minimum
The howler monkey is the loudest land animal and can be heard upto a distance of 2.5 km. The acoustic power emitted by the howler, in mW is
A 10kg mass that is moving at 15m/s hits a stationary 10kg mass. The collision is elastic. what is the total momentum BEFORE the collision
unpolarized light with an intensity Io=16 W/m2 is incident on a pair of polarizers. what is the intensity of light transmitted through the first and second polarizer
Unpolarized light passes through two Polaroid sheets. The transmission axis of the analyzer makes an angle of 20.8° with the axis of the polarizer
A tank circuit in a radio transmitter is a series RCL circuit connected to an antenna. determine the maximum inductance of the tank circuit
determine the torque about the axis immediately after the bug lands on sphere.
A moving particle encounters an external electric field that decreases its kinetic energy from 9910 eV to 6840 eV as the particle moves from position A to position B. Determine the charge of the particle
To stretch a certain spring by 2.70cm from its equilibrium position requires 8.00J of work. What is the force constant of this spring
The total impedance of an RC circuit with a resistance of 200 ? is 1060 ?. If the frequency of the applied voltage is 20.0 Hz, what is the value of the capacitance in this circuit
A photoelectric-effect experiment finds a stopping potential of 1.93 V when light of 200 nm is used to illuminate the cathode, From what metal is the cathode made
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