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A machine part rotates at an angular speed of 0.66 rad/s; its speed is then increased to 3.0 rad/s at an angular acceleration of 0.66 rad/s2. Find the angle through which the part rotates before reaching this final speed.
An L-R-C series circuit, R = 160? , L = 0.730H , and C = 2.00×10?2?F . The source has a voltage amplitude of 160V and a frequency equal to the resonance frequency of the circuit. What is the average power delivered by the source
Conservation of energy tells us that energy cannot be created or destroyed. Clearly, energy is required for radioactivity to occur. How could the age of this fragment be determined
find magnitudes of the tension forces in the first two ropes. what is the velocity of the cart when it reaches its greatest y coordinate.
A Carnot heat engine takes 89 cycles to lift a 15 kg mass a height of 15 m. What is the temperature of the hot reservoir in Celsius
A rescue plane flies horizontally at a constant speed searching for a disabled boat, If it takes the sound 2.10 s to reach the plane, determine the speed of the plane and What is its altitude
A freezer has a coefficient of performance of 2.40. The freezer is to convert 1.98kg of water at 26.0 oC to 1.98kg of ice at -5.00 oC in 1 hour. How much wasted heat is rejected to the room in which the freezer sits
A man pushes a heavy box up a plank inclined at an angle of 30. Calculate the ideal mechanical advantage of this incline plane
An airplane travelling 1001 m above the ocean at 125km/hr is to drop a box of supplies to shipwrecked victims below. How various seconds (t) before being dropped directly overhead should the box be dropped.
If a 1.00-kHz sound source moves at a speed of 48 m/s toward a listener who moves at a speed of 29.5 m/s in a direction away from the source, what is the apparent frequency heard by the listener
A 38.0 mH inductor has a reactance of 1.90 k. What is the frequency of the ac current that passes through the inductor
Your expression should give 3.0 m/s for and your answer to part A for theta. Express your answer in terms of theta. Sketch a graph of v versus theta for one complete revolution.
what is the equivalent resistance between points A and B?
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