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A flywheel is symmetrical but irregular. Its mass is 25 kg. When supported from a knife edge pivot, .36 m from the c. m. at its center, it oscillates as a physical pendulum completing 100 complete oscillations in 180 seconds. Find Io, its moment of inertia about the c.m. axis.
A sample contains 8.90×104 radioactive nuclei. In a time of 5 minutes, 1.90×103 of the nuclei decay. Evaluate the half life of the sample
the light shining on a diffraction grating has a wavelength of 490 nm in vacuum. the grating produces a second-order
External forces compress 21 mol of ideal monatomic gas; during the process the gas transfers 15 kJ of heat to its surroundings, How much work was done on the gas
A physics student in a hot air balloon ascends vertically at constant speed. suppose the following four forces that arise in this situation.
You are designing the section of a roller coaster ride shown in the figure. Previous sections of the ride give the train a speed of 11.9 m/s at the top of the incline, FIND the minimum radius you can use for the semi-circular hump
A large wooden crate is pushed along a smooth, frictionless surface by a force of 100N. The acceleration of the crate is measured to be 2.5 m/s2. What is the mass of the crate?
A subway train starts from rest at a station and accelerates at a rate of 1.70m/s2 for 13.2s. Find the total distance covered
question a 1.03 10-3 microf capacitor has an initial charge of 0.100 c. when a resistor is connected across the
A tire is inflated to a gauge pressure of 2.0 atm. find the gauge pressure of the tire at the higher temperature
Given a system composed of three bowling balls (6.52 kg each) one sliding east at a velocity of 20m/second the second sliding north with a velocity of 35 m/sec, find the total momentum of the system
Two people wish to push a big beer freezer weighing 2000 N up aramp inclined at an angle of 37.0o with the horizontal. The coefficient of kinetic friction between the freezer and theramp is 0.500.
A string with a length of 3.0 m has two adjacent resonances at frequencies 112 Hz and 140 Hz. What is the wavelength of the first harmonic
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