Physics, 23.08.2019 06:00 andrecoral105
Suppose an unknown substance has a melting temperature of 1,200 degrees celsius and a density of 16.7 g/cm3. however, the different individual atoms that make up the element have very different melting temperatures and densities. which is the unknown substance most likely?
a) solution
b) compound
c) molecule
Answers: 1
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A4.0-cm tall light bulb is placed a distance of 32.0 cm from a concave mirror having a focal length of 16.0 cm. determine the image distance
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Physics, 22.06.2019 23:30
You have two photos of a person walking. one shows the person at the corner of third and main streets, the other shows the person at the corner of tenth and main streets. there are lampposts at every corner in this town, and the first picture shows it to be 10: 32: 00 exactly. the second picture shows it to be 10: 49: 30. you know three facts: (1) all of the clocks are synchronized; (2) there are exactly 12 equal-sized blocks per kilometer in this town; and (3) the streets that cross main in this area are numbered consecutively, with no interruptions. what is the person’s average speed in kilometers per hour?
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Physics, 23.06.2019 10:00
Humid air is a better electrical conductor than dry air. explain why you are most likely to receive a shock after walking across a carpet when the air is dry than when the air is humid.
Answers: 1
Suppose an unknown substance has a melting temperature of 1,200 degrees celsius and a density of 16....
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