Physics, 30.06.2019 18:30 Edwardwall
How did cyanobacteria affect early earth’s biosphere? select all that apply. cyanobacteria allowed organisms that rely on oxygen to evolve. cyanobacteria stopped the formation of rust in the earth’s crust. cyanobacteria preceded the first photosynthetic organisms. cyanobacteria produced excess oxygen.
Answers: 1
Physics, 21.06.2019 17:50
Which describes an image that can be produced by a concave lens? the image is real and smaller than the object. the image is virtual and larger than the object. the image is virtual and smaller than the object. the image is real and larger than the object.
Answers: 3
Physics, 22.06.2019 01:50
Arod of some material 0.20 m long elongates 0.20 mm on heating from 21 to 120°c. determine the value of the linear coefficient of thermal expansion [in (degrees c)^-1] for this material.
Answers: 2
Physics, 22.06.2019 04:50
Unpolarized light whose intensity is 1.19 w/ is incident on a polarizer. (a) what is the intensity of the light leaving the polarizer? (b) if the analyzer is set at an angle of = 41.0∘ with respect to the polarizer, what is the intensity of the light that reaches the photocell?
Answers: 1
Physics, 22.06.2019 10:30
What are two different ways you could find the value of a? explain these methods.
Answers: 2
How did cyanobacteria affect early earth’s biosphere? select all that apply. cyanobacteria allowed...
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