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A student is examining a bacterium under the microscope. The E. coli bacterial cell has a mass of = 0.500 (where a femtogram,fg , is 10^-15 g) and is swimming at a velocity of v = 9.00 um/s, with an uncertainty in the velocity of 8.00 %. E. coli bacterial cells are around 1 um (10^-6m ) in length. The student is supposed to observe the bacterium and make a drawing. However, the student, having just learned about the Heisenberg uncertainty principle in physics class, complains that she cannot make the drawing. She claims that the uncertainty of the bacterium's position is greater than the microscope's viewing field, and the bacterium is thus impossible to locate.
What is the uncertainty of the position of the bacterium?Express your answer numerically in meters.
We wish to lower the freezing point of the water in an automobile radiator to -40 C. The total mass of water present is 12.0kg. For which one for the following compounds would we have to use the greatest mass of solute to achieve this
A student studied the clock reaction described in this experiment. She set up a reaction mixture by mixing 10mL of 0.010 M KI, 10mL of 0.0010 M Na2S2O3, 20mL of 0.040 M KBrO3 and 10 mL of 0.10 M HCL.
a copper wire density 8.96 gcm3 has a diameter of 0.50 mm. if a sample of this copper wire has a mass of 48 g how long
describe the nature and characteristics of pcbs. why are they of importance to an ehamps or fs professional who
Consider the following reaction: 2A + B → 3C + D If 63.0 mol A and 42.0 mol B react to form 54.0 mol C. What is the percent yield of this reaction.
you suspect that you 12 year old male patient has an inborn error in methionine metabolism. it may be that cystathionine synthase is deficient. if tho sis true, he should have high serum concentrations of
consider a major oil spill in a lake ( a prototype situation related to Alaska Oil Spill few years ago and many subsequent spills) Amount of oil spilled is 2.9 mega gram (Mg).
what statement best describes the graph representing the integrated 1st order rate law
A local radio station can be tuned in by dialing your radio to a frequency of 101.5 MHz. Calculate the energy of the wave.
160j of work has done by an expanding gas on its surroundings at a constant pressure 1.01 atm. determine the final
Draw a dilution scheme that would produce countable plates if the original culture has 4,730,000 viable cells/mL.
A sample of gas occupies 1.55L at STP. Remember, pressure at STP is 1.0 atm. What will the volume be if the pressure is increased to 50 atm while the temperature remains constant
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