Physics, 27.08.2020 07:01 kolbehoneyman
the diagram shows a ray of light being reflected by a plane mirror and one angle is 60 degrees. what will be the measure of its angle of incidence and angle of reflection?
Answers: 2
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A248-g piece of copper is dropped into 390 ml of water at 22.6 ยฐc. the final temperature of the water was measured as 39.9 ยฐc. calculate the initial temperature of the piece of copper. assume that all heat transfer occurs between the copper and the water. remember, the density of water is 1.0 g/m
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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 personโs average speed in kilometers per hour?
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Why does an object have a different weight o the moon than it does on earth
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Physics, 23.06.2019 13:30
You pump 25.0l of air at atmospheric pressure into a soccer ball that has a volume of 4.50l. what is the pressure inside the soccer ball if the temperature does not change?
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the diagram shows a ray of light being reflected by a plane mirror and one angle is 60 degrees. what...
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