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A car travels on a straight, level road.
(a) Starting from rest, the car is going 44 ft/s (30 mi/h) at the end of 5.0 s. What is the car's average acceleration in ft/s2?
(b) In 4.0 more seconds, the car is going 88 ft/s (60 mi/h). What is the car's average acceleration for this time period?
(c) The car then slows to 66 ft/s (45 mi/h) in 3.0 s. What is the average acceleration for this time period?
(d) What is the overall average acceleration for the total time? (Note these convenient British unit conversions: 60 mi/h 88 ft/s, 45 mi/h 66 ft/s, and 30 mi/h 44 ft/s.)
laser light scattering on a dilute solution of lysozyme is carried out. The light intensity autocorrelation function decays exponentially with lifetime τC= 16.1 *10^-3 sec. An argon ion laser is used at wavelength of 488 nm and the scattering angl..
2N2H4 (aq) + H2SO4 (aq)--> 2 N2H5+So4^-2(aq) how many grams of hydrazine can be consumed by 250.ml of 0.225 M H2SO4?
Draw the Skeletal structure of (2R,3R)-dibromosuccinic acid ((2R,3R)-2,3-dibromobutanedioic acid) (show one wedge bond, one dashed bond, and two sticks attached to the chiral carbon.
An unknown volume of water at 18.2 degrees Celsius is added to 21.6 mL of water at 35.0 degrees Celsius. If the final temperature is 23.5 degrees Celsius, what was the unknown volume
Problem- Calculate the concentration of all species (identified below) in the solution resulting from the reaction between 35.0 mL of 0.200M HCN and 35.0 mL of 0.200M LiOH.
What is the minimum flow rate of water (? = 0.990 g/mL) required to scrub out 90.0% of the incoming NH3? What is the mole fraction of NH3 in the scrubbed waste gas stream?
Suppose the first-order rate constant at 70C for the decomposition of dinitrogenpentoxide is 6.82*10^-3s-1. Formula for reaction is 2 N2O5-----> 4 NO2 + O2
Propanoic acid, HC3H5O2, ionizes in water and has a Ka=1.34x10^-5. What is value of Kb for the propanoate ion
how much heat is required to convert 30.0 g of ethanol at 28 c to the vapor phase at 78 c ?additional infoethanol
for analysis a short peptide seven residues long is treated with fdnb followed by complete acid hydrolysis and amino
The lowest molecular weight on the list of unknowns is formic acid, MW = 46.03 g/mol. Your titration volume should be between 10 mL and 50 mL. What is the smallest and largest masses of formic acid that would give titration volumes within these li..
What mass of P4 is produced when 41.5 g of Ca3(PO4)2, 26.5 g of SiO2 and 7.80 g of C are reacted according to the equation: 2Ca3(PO4)2 + 6SiO2 + 10C ¼ P4 + 6CaSiO3 + 10C
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