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For a system with an undamped natural frequency of 100 Hz and a damping ratio of 0.05, what is the maximum frequency of excitation below the natural frequency where the transmitted force is no greater than 110% of the static value? What is the minimum frequency that meets this condition above the natural frequency?
The former is on the left in contact with air and the other in contact with a liquid of index 1.4 The refractive index of the glass is 1.50. Find the positions of the foci, principal planes, and focal length of the system.Use the matrix approach
A bullet of mass m and speed v passes completely through a pendulum bob of mass M. The bullet emerges with a speed v/2. The pendulum bob is suspended by a stiff rod of length and negligible mass. What is the minimum value of v such that the pendulum ..
A cylindrical air duct in an air conditioning system has a lengthof 5.5 m and a radius of 7.2 x 10^-2 m. A fan forces air ( n = 1.8x 10^-5 Pa·s) through the duct, such that the air in a room(volume = 280 m^3) is replenished every ten minutes. Dete..
A certain system has 6x10^24 degrees of freedom and its internal energy increases by 1%, then what is the increase in the system's entropy
To test the working of a refrigerator you put a container having two liters of water (=2kg) at 50C in its freezer. How much heat has the refrigerator extracted from the water
In an engine, an almost ideal gas is compressed adiabatically tohalf its volume. In doing so,1380 J of work is done on the gas. What is the change in internal energy of the gas
A 200 weather rocket is loaded with 100 kg of fuel and fired straight up. It accelerates upward at 30 m/s^2 for 33 s, then runs out of fuel. Ignore any air resistance effects. Illustrate what is the rocket's maximum altitude?
Hagrid thinks he is more powerful than Snape.He performs 1800 J of work in a total of 10 seconds, How much power does each man exert
at what height above the earth is the acceleration due to gravity 10% of its value at the surface, find the speed of a satellite orbiting at that height?
A 2.00-ton automobile is parked at the top of a hill that is 100ft high and inclined 25 degrees with respect to the horizon. find the automobile velocity (ft/s) at the bottom of the hill
A target in a shooting gallery consists of a vertical squarewooden board, 0.250 m on a side and with mass 0.750 kg, What is the angular speed of the board just afterthe bullet's impact
The index of refraction for red light in water is 1.331 and that for blue light is 1.340. A ray of white light enters the water at an angle of incidence of 60.8°
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