Calculate the period for the record
A coin is placed on a vinyl record making 45 revolutions per minute. Calculate the period for the record. The coin is placed 9.1 from the center. The centripetal acceleration is _____ m/s2.
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Two loudspeakers are placed at either end of a gymnasium,both pointing towards each other . the sound emmited by the speakers are in phase and are of frequency of 256 Hz . an observer midway between the speakers expriences an intensity maximum. Ho
How much heat energy is needed to raise the temperature of a 50 g sample of aluminum from 32.7 ?C to 98.7 ?C? The speci?c heat of aluminum is 0.897 J/g · K. Answer in units of J
After a package is ejected from the plane, how long will it take for it to reach sea level from the time it is ejected? Assume that the package, like the plane, has an initial velocity of 270 mph in the horizontal direction.
A laser emits light at a wavelength of 591 nm. How many photons and moles of photons does it emit each second if its power is 6.0 W?
When numbers are very small or very large, it is convenient to either express the value in scientific notation and/or by using a prefix with the unit.
A cord of mass 0.730 kg is stretched between two supports 38.0 m apart. If the tension in the cord is 460 N, how long (in s) will it take for a wave-pulse to travel via the cord from one support to the other?
An aqueous solution contains 13.5% NaCl by mass. What mass of water (in grams) is contained in 2.1L of the vapor above this solution at 55 °C? The vapor pressure of pure water at 55 °C is 118 torr. (Assume a van't Hoff factor of 1.9 for NaCl.) &
Jason is practicing his tennis stroke by hitting balls against a wall. The ball leaves his racquet at a height of 60 cm above the ground at an angle of 80' with respect to the vertical.
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Evidence of Cultural Impact: The cultural impact of economic factors can be observed through specific practices and initiatives within the NSHA:
Mrs Robinson is unconscious. When performing eye care as part of hygiene, which of the following interventions should be performed by the nurse Selec
Problem: Discuss some ethical issues that limit access and quality of care.
Question: Which one of the following is NOT present in tetralogy of Fallot?
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Winslow's definition of Public Health from the 1920's marks a significant recognition of the principles of health promotion in modern history.
Point of use cleaning of used instruments MUST be performed immediately following the procedure in the following location