Biology, 26.04.2021 21:30 jazmaine1217
If 5J of work is exerted by the machine on the load, but 1.5J are used up by the friction between the parts, what is the efficiency of the machine?
Answers:
3.33%
0.3%
76.92%
1.3%
Answers: 1
Biology, 22.06.2019 02:30
Astudent reads the following text in a science book: scientific evidence tells us that the cause of earths four seasons is the tilt of earth as it revolves around the sound the student is instructed to illustrate this information in a science book. how will the student illustrate winter in the northern hemisphere? a.earths northern hemisphere will tilt away from the sun. b. earths northern hemisphere will tilt toward the sun. c.earths orbit will be farther away than from the sun d. earths southern hemisphere will tilt away from the sun.
Answers: 1
Biology, 22.06.2019 04:00
The wings of insects, birds, and bats evolved independently but carry out similar functions. this is an example of a. analogous structures. b. embryonic structures. c. vestigial structures. d. homologous structures.
Answers: 1
Biology, 22.06.2019 06:30
How does the diagram explain ocean currents? earth tilt 23.5 degreesquestion 1 options: earth's tilt causes uneven heating of earth which causes currents.earth's tilt causes the ocean to move because of gravity.earth's tilt and its rotation cause currents.earth's tilt causes uneven distribution of salt which causes currents.
Answers: 1
Biology, 22.06.2019 10:00
If an organ has six haploid chromosomes,how many chromosomes are present. 6 12
Answers: 1
If 5J of work is exerted by the machine on the load, but 1.5J are used up by the friction between th...
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