Physics, 02.08.2019 21:20 CHRONICxDJ
How many grams of coffee must evaporate from 350 g of coffee in a 100-g glass cup to cool the coffee from 95.0ºc to 45.0ºc? you may assume the coffee has the same thermal properties as water and that the average heat of vaporization is 2340 kj/kg (560 cal/g). (you may neglect the change in mass of the coffee as it cools, which will give you an answer that is slightly larger tha
Answers: 3
Physics, 22.06.2019 06:00
An ideal gas is held in a container at constant volume. initially, its temperature is 5 degrees c and its pressure is 1.2 atm. what is its pressure when its temperature is 43 degrees c? answer in units of atm
Answers: 2
Physics, 22.06.2019 06:30
The coulomb's law explains which of the following? select all the force between two charged objects is inversely proportional to the charge on each object. the force between two charged objects is directly proportional to the charge on each object. the force between two charged objects is directly proportional to the distance separating them. the force between two charged objects is inversely proportional to the square of the distance separat coulomb's law is similar to newton's 2nd law. if the force between two objects is f and the charge on both objects is doubled, the new force between the would now be 2f. if the force between two objects is 2f and the distance separating them is doubled, the new force between the objects would now o the be zf.
Answers: 3
Physics, 22.06.2019 11:30
Why is the energy that results from a roller coaster's position at the top of a hill referred to as potential energy?
Answers: 1
Physics, 22.06.2019 16:30
Humidity is to blame for that muggy, steamy feeling you experience on some hot summer days. what gas in the atmosphere causes humidity? a) oxygen b) hydrogen c) nitrogen d) water vapor
Answers: 1
How many grams of coffee must evaporate from 350 g of coffee in a 100-g glass cup to cool the coffee...
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