Engineering, 19.11.2019 06:31 jaystarr9395
Cryo-electron tomography uses an electron microscope to obtain remarkably high resolution images, such as those used to understand the structures in planctomycetes bacteria. however, earlier microscopic techniques also led to important discoveries. which of the examples below describes a bacterial characteristic discovered using microscopy? a. electron microscopy has been used to show that mycoplasmas lack cell walls. b. light microscopy with the gram-stain technique has been used to show that bacillus are gram-negative rods. c. electron microscopy has been used to identify the reticulate body in mycobacteria. d. light microscopy and the acid-fast staining technique can be used to distinguish clostridium from all other genera of bacteria.
Answers: 1
Engineering, 04.07.2019 18:10
Aflywheel accelerates for 5 seconds at 2 rad/s2 from a speed of 20 rpm. determine the total number of revolutions of the flywheel during the period of its acceleration. a.5.65 b.8.43 c. 723 d.6.86
Answers: 2
Engineering, 04.07.2019 18:10
Afluid flows with a velocity field given by v=(x/t)i.. determine the local and convective accelerations when x=3 and t=1.
Answers: 2
Engineering, 04.07.2019 18:10
Apipe with an outside diameter of 15 cm is exposed to an ambient air and surrounding temperature of -20°c. the pipe has an outer surface temperature of 65°c and an emissivity of 0.85. if the rate of heat loss from the pipe surface is 0.95 kw per meter of length, the external convective heat transfer coefficient (h) is: (a) 12.5 w/m"k (b) 18.6 w/mk (c) 23.7 w/mk (d) 27.9 w/mk (e) 33.5 w/mk
Answers: 1
Engineering, 04.07.2019 18:20
What is the heat treatment of metals? what is the benefit of it? why and how it's useful? answer in details, do not write by hand.
Answers: 3
Cryo-electron tomography uses an electron microscope to obtain remarkably high resolution images, su...
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