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Outside the space shuttle, you and a friend pull on two ropes to dock a satellite whose mass is 900 kg. The satellite is initially at position < 4.0, -1.4, 3.0 > m and has a speed of 5 m/s. You exert a force < -400, 300, 300 > N. When the satellite reaches the position < 2.8, 2.2, 4.8 > m, its speed is 6.17 m/s. How much work did your friend do?
Work done by friend = J
a compound containing sulfur nitrogen and hydrogen has 86.6 sulfur 12.6 nitrogen and 0.91 hydrogen. a 1.263-g sample of
Write a balanced half-reaction describing the oxidation of gaseous dihydrogen to aqueous hydrogen cations.
You dilute 1 ml of this solution to 25 ml with distilled water; the measured absorbance is 0.2. What is the concentration of the original concentrated solution
Establish the equilibrium K values for a distillation system to separate diisopropyl benzene from a mixture of heavy aromatics, the major component in the heavy aromatics is diphenyl propane. Other non key components are triisopropyl benzene, cume..
Consider a reaction of the type aA--->products in which the rate law is found to be rate=k(A)3 If the first half of the reaction is found to be 40 seconds what is the time for the second half life
The entropy of sublimation of a certain compound is 7.2 J / K mol at its normal sublimation point of 76 C. Calculate the vapour pressure in torr of the compound at 28 C.
If 10ml of 0.1M zinc nitrate were added to 25mL of 0.1M Ba(OH)2, what would you obersve? write a chemical reaction for this process.
what mass of ethylene glycol must be added to 1455 g of water to raise the boiling point to 104.7 degree celsius
The vapor pressure of the pure liquids at 25°C are 451 torr for pentane and 321 torr for cyclopentane. Assume that the solution is an ideal solution.
When the following equation is balanced properly under acidic conditions, what are the coefficients of the species shown?
Apamine is a small monomeric peptide toxin present in the venom of the honeybee. it has the sequence: CNCKAPETALCARRCQQH a)it is known that apamine does NOT react with iodoacetate. how many disulfide bonds are present?
Calculate the plate height (H) for a 16 cm-long column with a stationary phase particle diameter
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