Physics, 30.07.2019 16:00 geckos3411
Which of the following refers to a combination of substances in which the components are evenly mixed? a. heterogeneous mixture b. ion c. compound d. homogeneous mixture
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Physics, 22.06.2019 15:30
This is the number of complete movements of a wave per second.
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Physics, 22.06.2019 19:50
The heater element of a 120 v toaster is a 5.4 m length of nichrome wire, whose diameter is 0.48 mm. the resistivity of nichrome at the operating temperature of the toaster is 1.3 × 10-6 ω·m. the toaster is operated at a voltage of 120 v. (a) what is the power drawn by the toaster? (b) if the cost of electricity is 12 ¢ per kilowatt-hour, and it takes 2 minutes to toast bread, how much does it cost for toasted bread? (c) when the heater element is at room temperature, is the resistivity in the nichrome wire greater than, less than, or equal to it’s resistivity when at operating temperature? explain.
Answers: 3
Physics, 22.06.2019 20:10
Atruck with 34-in.-diameter wheels is traveling at 55 mi/h. find the angular speed of the wheels in rad/min, *hint convert miles to inches & hours to minutes:
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Physics, 23.06.2019 02:30
Substances that assume the shape of their container, but do not have a definite size are called
Answers: 2
Which of the following refers to a combination of substances in which the components are evenly mixe...
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