Physics, 10.02.2021 18:50, jamesnech66
3. A 120 g piece of aluminum (Caluminum =9 J/gºC) is at 70°C. It is placed in a 100 g beaker of water at 15°C.
The final temperature of the mixture is 26.3°C.
a. What was the thermal energy gained by the water?
Answers: 1
Physics, 21.06.2019 16:00, hermesrobles
In a laboratory, nakisha mixes sodium hydroxide solution with an indicator called phenolphthalein. when combined, they create a pink solution. nakisha wonders if mixing other solutions with phenolphthalein will also create this pink color. how could she use the scientific inquiry process to explore it further?
Answers: 1
Physics, 21.06.2019 17:00, edwardp03418
Trumpeter a holds a b-flat note on the trumpet for a long time. person c is running towards the trumpeter at a constant velocity. person b is running away from the trumpeter at the same rate. person d is standing still the whole time. which person hears a frequency that is lower than the b-flat?
Answers: 1
Physics, 22.06.2019 12:10, anaroles04
Light traveling in water, nwater = 1.33, strikes a plastic block at an angle of incidence of 51.4°; part of the beam is reflected and part is refracted. if the index of refraction of the plastic is 2.0, what is the angle made by the reflected and refracted beams?
Answers: 2
Physics, 22.06.2019 13:00, livvyr0cks
Ways that industry and agriculture use physical properties to separate substances
Answers: 1
3. A 120 g piece of aluminum (Caluminum =9 J/gºC) is at 70°C. It is placed in a 100 g beaker of wate...
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