Answer:
mass of the air = 14.62kg
Workdone = 415.88 kJ
Heat transfer = 415.88 kJ
Explanation:
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Answer:
the sun gives off light while at the same time gives off heat. the shoe box cooker takes that heat and light and reflects it around the shoe box. then the heat settles down into whatever is in the shoe box. the heat after being reflected around the shoe box is magnified by the foil wrapped in the box thus allowing the food or drink to be heated. the foil is a conductor of heat because it is metal .
Explanation:
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Answer:
12 volts
Explanation:
The voltage ratio is equal to the turns ratio.
secondary/primary = 20/200 = v2/120
v2 = 120(20/200) = 12
The secondary winding voltage is 12 volts.