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Each of the two triangular plates shown has a mass of 5 kg and is welded to a vertical shaft AB. Knowing that the assembly rotates at the constant rate ω=8 rad/s, determine the dynamic reactions at A and B.
The oscillations of an actual spring-block system slowly reduce in amplitude and finally the system comes to a halt. What happens to the energy of the system
a certain ball has the property that each time it falls from a height onto a hard level surface it rebounds to a height
Consider three capacitors, of capacitance 2860 pF, 4570 pF, and 0.0011 ?F. what are the maximum and minimum capacitances that you can form from these
A 108-g cube of ice at 0°C is dropped into 1.0 kg of water that was originally at 76°C. What is the final temperature of the water after the ice has melted
Two bullets are fired at the same time with the same kinetic energy. If one bullet has twice the mass of the other, which has the greater speed
Rigel, a bluish-white star in Orion, radiates with a peak wavelength of 145 nm. Find the temperature of Rigel's surface
Care for the coffee as though it were pure water and neglect energy exchanges with environment.
a disoriented physics professor drives 3.33 north then 4.69 west and then 1.61 south.1-use components to find the
A 300 ball on a 70--long string is swung in a vertical circle about a point 200 above the floor. What was the tension in the string an instant before it broke
At a fabrication plant, a hot metal forging has a mass of 75 kg and a specific heat capacity of 430 J/(kg·°C). To harden it, the forging is immersed in 710 kg of oil that has a temperature of 32°C and a specific heat capacity of 2900 J/(kg·°C).
Which medium has the higher "index of refraction" for sound - What is the critical angle for a sound wave incident on the surface between air and water?
A block slides down a frictionless plane having an inclination of θ = 15.0 degrees. The block starts from rest at the top and the length of the incline is 2.00m (a) Draw a free-body diagram of the block.
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