What is the name of the process of systematic study and experimentation? (2 points)
a
Collabo...
Physics, 12.10.2020 14:01, heartprague
What is the name of the process of systematic study and experimentation? (2 points)
a
Collaborative process
b
Scientific method
c
Investigative reporting
d
Repetitive trials
Question 29 (2 points)
What characteristic makes Biology a science, but not Art History? (2 points)
a
Using a process of testing ideas and gathering evidence
b
Writing books about the subject
c
Having a college degree to study it
d
Discussing and sharing ideas
Question 30 (2 points)
Einstein's theory of general relativity describes how space and time are connected. What makes this idea a theory? (2 points)
a
Einstein was a known genius
b
It was supported by observations and evidence
c
Two or more people debated it
d
It was about an unknown hypothesis
Answers: 3
Physics, 22.06.2019 01:10, caguil00
Asteam power plant operates on an ideal reheat rankine cycle between the pressure limits of 15 mpa and 10 kpa. the mass flow rate of steam through the cycle is 12 kg/s. steam enters both stages of the turbine at 500°c. if the moisture content of the steam at the exit of the low-pressure turbine is not to exceed 10 percent, determine (a) the pressure at which reheating takes place, (b) the total rate of heat input in the boiler, and (c) the thermal efficiency of the cycle. also, show the cycle on a t-s diagram with respect to the saturation lines. (2.15 mpa; 45.0 mw; 42.6%)
Answers: 3
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