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A rotating wheel requires 5.00 seconds to rotate 28.0 revolutions. Its angular velocity at the end of the 5.00 second interval is 100.0 rad/s. Calculate the constant angular acceleration of the wheel? rad/s2
1 a singly charged particle accelerated through a potential difference of 115v has a wavelength of 4.4fm. find its
A certain pipe has resonant frequencies of 350 Hz, 490 Hz, and 630 Hz, with no other resonant frequencies between these values. How long is this pipe
A pendulum, consisting of a ball of mass m on a light string of length 1.00 m, is swung back to a 45° angle and released from rest. What is the block's speed after the collision
During each cycle, a refrigerator ejects 680 kJ of energy to a high-temperature reservoir, and takes in 600 kJ of energy from a low-temperature reservoir. Determine the work done on the refrigerant in each cycle. Determine the coefficient of performa..
A car moving 65 mph suddenly breaks and stops after travelingfor 50m. Find the time it takes for the car to stop
in 1993 the radius of hurricane emily was about 350 kmh. the wind speed near the center eye of the hurricane whose
A sound source emits sounds of frequency 215 Hz that travel through still air at 340 m/s. Find the frequency heard by the listener
65kW is to arrive at a town over two 0.100-Ω lines. Estimate how much power is saved if the voltage is stepped up from 120V to 1200V and then down again, rather than simply transmitting at 120V. Assume the transformers are 99% efficient.
The adiabatic, aergonic throttling calorimeter is a device by which the quality of wet steam flowing in a pipe may be determined. Determine (a) the enthalpy of the steam in the pipe
Two identical diverging lenses are separated by 15 cm. The focal length of each lens is -8.0 cm. Determine the final image distance relative to the lens on the right
A 7.0 kg box is raised from rest adistance of 1.0 m by a vertical forceof 120 N. Find the final kinetic energy of the box
A 120 W lightbulb and a 90.0 W lightbulb are connected in a series. what is the current through the two bulbs
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