Physics, 06.10.2019 06:30 BreBreDoeCCx
Water is boiled in a 1-l coffee maker with an immersion-type electric heating element at atmospheric pressure. it was observed that ½-l has evaporated in 13 min once boiling starts. a) if the heating element is rated based on power required to evaporate water, determine the rating of the heating element. b) for the same heating element, how long will it take to raise the 1-l temperature from 18 oc to boiling point at the same atmospheric pressure? take liquid water density air = 1000 kg/m3 & specific heat cpwater = 4.18 kj/(kg. ok).
Answers: 1
Physics, 22.06.2019 17:40
Aspring is used to stop a 50-kg package which is moving down a 20º incline. the spring has a constant k = 30 kn/m and is held by cables so that it is initially compressed 50 mm. knowing that the velocity of the package is 2 m/s when it is 8 m from the spring and neglecting friction, determine the maximum additional deformation of the spring in bringing the package to rest.
Answers: 1
Physics, 22.06.2019 22:00
Hat is the most commonly cited cause of occupational injuries in the healthcare sector? a. repositioning of patients b. manual pipetting c. slips and trips d. workplace violence
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Water is boiled in a 1-l coffee maker with an immersion-type electric heating element at atmospheric...
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