Physics, 10.07.2019 21:20 samueldfhung
Acube of aluminum floats in a container partially filled with mercury (a) both the aluminum and mercury are at 20.0 c. what fraction of the cube is above the surface of the mercury? (numeric answer.) (b) the temperature of both the aluminum and the mereury is raised to 350 °c. what fraction of the cube is above the surface of a mercury? (numeric answer. (c) if the aluminum cube were 0.01 m on a side when the temperature is 20.0 °c, what is the length of one side after the temperature has been raised to 350 °c? (numeric answer)
Answers: 2
Physics, 21.06.2019 20:30
When you drop a pebble from height a it reaches the ground with speed v if there is no air resistance. from what height should you drop it so it will reach the ground with three times the speed? (a) 9m (b) 3m (c) 6m (d) 18m
Answers: 2
Physics, 22.06.2019 02:50
Ammonia enters the expansion valve of a refrigeration system at a pressure of 10 bar and a temperature of 18oc and exits at 6.0 bar. the refrigerant undergoes a throttling process. determine the temperature, in oc, and the quality of the refrigerant at the exit of the expansion valve.
Answers: 3
Physics, 22.06.2019 09:40
Which is special about a dc circuit ? a. it has both series and parallel components b. it has only series or only parallel components c. charge moves in a single direction d. charge moves back and forth quickly
Answers: 3
Acube of aluminum floats in a container partially filled with mercury (a) both the aluminum and merc...
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