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soso
Questions and answers by visitors named
soso
Questions (10)
Calculate the de Broglie wavelength (in pm ) of a hydrogen atom traveling 445 m/s.
1 answer
690 views
An X-ray photon of wavelength 0.948nm strikes a surface. The emitted electron has a kinetic energy of 979 eV.
What is the binding
1 answer
617 views
A metal whose threshold frequency is 9.02×1014 s-1 emits an electron with a velocity of 7.11×E5 m/s when radiation of
1 answer
794 views
An electron has an uncertainty in its position of 527 pm .What is the uncertainty in its velocity?
2 answers
541 views
An electron traveling at 2.1×E5 m/s has an uncertainty in its velocity of 7.98×E4 m/s.
What is the uncertainty in its position?
2 answers
509 views
A metal whose threshold frequency is 9.02×1014
1 answer
408 views
if the volume of the vapor had been assumed to be 125ml instead of your measured volume,what would have been the percent error
3 answers
1,333 views
Calculate the amount of heat required to raise the temperature of a 25 g sample of water from 9 ∘C to 30 ∘C.
Express your
2 answers
796 views
What is the percent mass of calcium in a calcium supplement if 1.28-g of calcium carbonate is extracted from a 2.72-g pill?
2 answers
546 views
A biologist records the number of microbes growing in a culture at the times listed in the table. If the microbes continue to
2 answers
577 views
Answers (3)
solve(sin(pi/2 -(20/a)*((1-(20/a)^2)^.5)))
There are no constraints on the system.
if the volume of the vapor had been assumed to be 125ml instead of your measured volume,what would have been the percent error in your report? molar mass of the compound?explain
