Determine the height which should second ball be placed
Two ping-pong balls each have a mass of 2.7g and carry a net charge of 0.430μC. One ball is held fixed. At what height should the second ball be placed directly above the fixed ball if it is to remain at rest there?
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When the key is in the "up" position, the plate separation is 0.74mm. How far must the key be depressed for a keystroke to be registered which happens when the capacitance increases by 3.9 pF?
Suppose propene (CH2=CH-CH3) is the hydrocarbon that reacts with the hydroxyl radical. Beginning with the addition of OH. radical, write the set of chemical reactions that ultimately produces an aldehyde. What is this final aldehyde?
How far downstream is the swimmer carried in 1.5 min. and what is his velocity relative to an observer on shore?
In order to purify a certain protein you require 0.1M glycine buffer at pH 9.4. Unfortunately, your stock room has run out of glycine. However you manage to find two 0.1 M glycine buffer solution. One at pH 9.0 and the other at pH 10.0.
Calculate the formal concentrations of acetic acid and sodium acetate necessary to prepare a buffer solution of pH 5 that is 0.2 M in total acetate. The pk of acetate is 4.76.
The coefficient of kinetic friction between your tires and the road is Δk=0.35 while for his car it is Δk =0.25. A) What is the acceleration of each vehicle?
What is the volume in the beaker with the aqueous solution of a nonvolatile nonelectrolyte when equilibrium is attained, assuming ideal behavior?
For a normal distribution, find the probability that an observation falls within 0.92 standard deviations of the mean.
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