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Sound with a frequency of 431 Hz travels through steel. A wavelength of 11.27 m is measured. What is the speed of the sound in steel?
Refrigerant-134a enters a compressor at 180 kPa as a saturated vapour with a flow rate of 0.35 m3/min and leaves at 700 kPa. The power supplied to the refrigerant during compression process is 2.35 kW. What is the temperature R-134a at the exit of th..
Two atomic clocks are carefully synchronized. One remains in New York, and the other is loaded on an airliner that travels at an average speed of 250m/s, Which clock will show the shorter elapsed time
Metal sphere 1 has a positive charge of 8.00nC . Metal sphere 2, which is twice the diameter of sphere 1, What are the final charges on each sphere
A rotating cylinder about 18km in length and 6km in diameter is designed to be used as a space colony. With what angular speed must it rotate so that residents on it will experience the same acceleration because of gravity on Earth.
Illustrate what are these accounting shenanigans? Briefly explain each. Do internet research to answer the question.
The potential difference between two parallel conducting plates in vacuum is 475 V, What is the kinetic energy of the alpha particle when it reaches the other plate
Suppose 28.5 kg of 87.5°C water is placed in contact with 28.5 kg of 11°C water. What is the change in heat (in J) of the hot water
A 0.25 kg skeet (clay target) is fired at an angle of 28 degrees to the horizon with a speed of 25 m/s.
A 2.46 x 10-2-kg block is resting on a horizontal frictionless surface and is attached to a horizontal spring whose spring constant is 110 N/m. The block is shoved parallel to the spring axis and is given an initial speed of 10.4 m/s, while spring is..
An 18-year-old runner can complete a 10.0 km course with an average speed of 4.38 m/s. A 50-year-old runner can cover the same distance with an average speed of 3.88 m/s. How much later (in seconds) should the younger runner start in order to fini..
The inner and outer surfaces of a cell membrane carry a negative and positive charge, respectively. Because of these charges, What is the magnitude of the electric field in the membrane
Two forces act on a block of wood. The first force has a magnitude of 8.66 N in a direction 12.0 degrees counterclockwise from the positive x-axis, What is the magnitude of the resulting force
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