Physics, 08.10.2019 03:30 chancecharles9oug353
Afood item that is left out of the refrigerator turns brown and forms bubbles and gas. what are the signs that this is a chemical reaction? check all that apply.
a: heat is produced.
b: heat is absorbed.
c: bubbles appear.
d: a precipitate forms.
e: the color changes.
Answers: 2
Physics, 22.06.2019 08:50, potatoismeh1
You are given a vector a = 125i and an unknown vector b that is perpendicular to a. the cross-product of these two vectors is a × b = 98k. what is the y-component of vector b?
Answers: 1
Physics, 22.06.2019 10:30, zoebtharpe
An insulated 40 ft^3 rigid tank contains air at 50 psia and 120°f. a valve connected to the tank is now opened, and air is allowed to escape until the pressure inside drops to 25 psia. the air temperature during this process is kept constant by an electric resistance heater placed in the tank. determine the electrical work done during this process.
Answers: 2
Afood item that is left out of the refrigerator turns brown and forms bubbles and gas. what are the...
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