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A cube of mass m1 = 3.2 kg is sitting on top of another cube of the same size and mass m2 = 9.6 kg while they are both in free-fall. What is the magnitude of the normal force with which the top cube is acting on the bottom cube?
What is the formal charge on each of the atoms. Enter the formal charges in the same order as the atoms are listed. Express your answers as charges separated by comma. For example, a positive one charge would be written as +1.
Your intuition probably tells you that for 2 identical blocks, Tf is the average of the initial temperatures, so that Tf = 1/2 (T1 + T2)
A flask is filled with vapor by boiling a volatile unknown liquid in the foil covered flask. As it boils away, the vapor of the unknown pushes the air out of the flask through a tiny pinhole opening and eventually the flask is filled with an atmos..
A mixture of NaCl and NaBr has a mass of 2.00 and is found to contain 0.78 of Na. What is the Mass of NaBr in the mixture.
The conversion factor between liter atmospheres and joules is 101.3 J = 1 L atm. The gas constant is 0.08206 (L atm)/(mol K). Molecular weight of Nitrogen
Propose a step-by-step microscale extraction procedure that could be used to separate a mixture nitrobenzene, 4-methoxybenzoic acid, and benzylamine into the pure compounds using extraction technique. All of the molecules are organic-soluble in di..
How many millilitres of 0.200 M HCl must be added to 50.0 mL of a 0.200 M solution of NH3 in order to prepare a buffer that has a pH of 8.60? Kb of NH3 = 1.8 x 10-5.
Problem- Suppose a hydrogen bond in water has an energy of about 2 kcal/mol. Suppose a "made" bond is the ground state in a two state model and a "broken" bond is the excited state. At T = 300K, what fraction of hydrogen bonds are broken
What is the difference between water on the surface of the crystals of a Hydrate and Hydrate water itself
If 10 grams of an organic layer is extracted with an additional amount of fresh water, how much benzoic acid would be present in the organic layer
How much heat is required to warm 223 g of ice from -46.3°C to 0.0°C, melt the ice, warm the water from 0.0°C to 100.0°C, boil the water, and heat the steam to 173.0°C?
Presume that gasoline can be represented as consisting completely of C8H18. Gasoline has a density of 0.85 g cm- 3. Presume that combustion of CgH18 leads to CO2 and H2O. Explain how many kilograms of CO2 does your driving contribute to the atmosp..
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