subject
Physics, 08.01.2020 11:31 bbrogle4070

When glass is formed, which of these takes place first?
a) the sand turns to liquid.
b) the molecules become hard.
c) the sand is heated intensely.
d) the molecules become disordered.

ansver
Answers: 2

Another question on Physics

question
Physics, 21.06.2019 17:30
Plss anybody know how to do this? ? i need the answers from a through d
Answers: 1
question
Physics, 21.06.2019 18:50
How does the image distance (di) of a convex lens compare with the image distance of a concave lens? a. the image distance of the convex lens is positive, and that of the concave lens is negative. b. both are negative for a virtual image. c. both are positive for a virtual image d. the image distance of the convex lens is negative, and that of the concave lens is positive.
Answers: 1
question
Physics, 22.06.2019 10:30
Air is to be preheated by hot exhaust gases in a cross-flow heat exchanger before it enters the furnace. air enters the heat exchanger at 95 kpa and 20°c at a rate of 0.6 m^3/s. the combustion gases (cp = 1.10 kj/kg°c) enter at 160°c at a rate of 0.95 kg/s and leave at 95°c. determine the rate of heat transfer to the air and its outlet temperature.
Answers: 2
question
Physics, 22.06.2019 12:00
You have a resistor and a capacitor of unknown values. first, you charge the capacitor and discharge it through the resistor. by monitoring the capacitor voltage on an oscilloscope, you see that the voltage decays to half its initial value in 2.70 miss . you then use the resistor and capacitor to make a low-pass filter. what is the crossover frequency fc?
Answers: 2
You know the right answer?
When glass is formed, which of these takes place first?
a) the sand turns to liquid.
b...
Questions
question
Social Studies, 01.08.2019 15:30
question
Social Studies, 01.08.2019 15:40
Questions on the website: 13722367