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The period of a physical pendulum is measured first at sea level, where the pendulum completes 100 cycles in 1561 s, and then on a mountaintop, where it completes 100 cycles in 1563 s. Assuming that the change in period is caused only by the variation in g with altitude, find the height of the mountain.
What is the ratio of the dynamic viscosity of air to that of water at standard pressure and a temperature of 20?C? Find the ratio of the kinematic viscosity of air to that of water for the same condition?
A 125-turn circular coil of radius 2.75 cm is immersed in a uniform magnetic field that is perpendicular to the plane of the coil. Find the magnitude of the average EMF
A Young's double-slit interference experiment is performed with blue-green argon laser light. The separation between the slits is 0.525 mm, What is the wavelength of argon laser light
The primary coil of a transformer has N1 = 2.00 102 turns, and its secondary coil has N2 = 1.00 102 turns. what rms voltage is developed across the secondary coil
question1a ball drops from rest from an unknown height h. the time it takes for the ball to hit the ground is measured
A 210g , 30.0-cm-diameter turntable rotates on frictionless bearings at 61.0rpm. What is the turntable's rotation angular velocity when the block reaches the outer edge
a 85-kg sprinter accelerates from rest to a speed of 10.0 m/s in a 5.0 s. calculate the average power the sprinter must generate
A clock has a second hand whose tip rubs against the inside of the glass cover. what is the minimum torque that must be applied to the second hand
The currents in household wiring and power lines alternate at a frequency of 60.0 Hz. What is the wavelength of the EM waves emitted by the wiring
A cubic box of volume = 0.34300m^3 is filled with air at atmospheric pressure at 20.000*C. What is the net force on one side of the box
A 72kg man climbs a 1192 m high mountain in 1.43 hour and uses 7.6kcal/min. What is the power ouTput in useful work
A long, current-carrying solenoid with an air core has 1740 turns per meter of length and a radius of 0.0210 m. What is the mutual inductance of this system
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