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A m = 31.9 kg object is released from rest at a distance h = 0.636658 R above the Earth's surface. The acceleration of gravity is 9.8 m/s 2 . For the Earth, RE = 6.38 × 106 m, M = 5.98 × 1024 kg. The gravitational acceleration at the surface of the earth is g = 9.8 m/s 2 . Find the speed of the object when it strikes the Earth's surface. Neglect any atmospheric friction. Caution: You must take into account that the gravitational acceleration depends on distance between the object and the center of the earth. Answer in units of m/s.
2 l of 7 m concentrated hf solution is placed into a 10 lcontainer. the container is sealed and the air is evacuated.
What concentration of Ca2+ must be added to 0.010 M oxalate (C2O^-2 4) to precipitate 99.0% of the oxalate.
Which of the following terms define(s) an acid according to the Bronsted-Lowry theory?
A titration was performed on 10 ml of unknown weak acid. NaOH was titrated with it. The NaOH concentration was 0.09445. The second equivalence point was at 18.85 and the first at 9.42. If the acid is 8.10279 g/L what is the molar mass
There is no meso form for carvone. What symmetry element is absent in carvone that would allow for the existence of a meso form
sulfate dissolves as follows: Na2SO4(s) → 2Na+(aq) + SO42- (aq). How many moles of Na2SO4 are required to make 1.0 L of solution in which the Na concentration is 0.10 M?
what is the freezing point(Degrees C) of a solution prepared by dissolving 11.3g of Ca(NO3)2 ( formula weight= 164g/mol) in 115g of water?
A steel cylinder of oxygen has a volume of 20.0 L at 22degrees C at 35 atm. What is the volume at STP? How many mol of oxygen
Problem- You are using the following procedure from your lab instructions to determine the copper content of a brass sample: "Approximately 35 mg of a dried brass sample (accurately measured) is put into a 250-mL Erlenmeyer flask.
a sample of benzenec6h6 which contains a total of 5.50 mol of carboncalculate the number of molecules present in each
Please Describe functional groups and their nomenclature, particularly, hydroxyl groups, carboxylic acids, amines, amides, and anhydride bonds is needed.
Question- 6 M NH3, a basic solution, cannot be found on the reagent shelf, but 6 M NaOH, also a base, is available. What would be observed if the 6 M NaOH is substituted for the 6 M NH3 in testing the reference solution? This is for the test for C..
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