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(a) What is the kinetic energy in joules of an 850-lb motorcycle moving at 66 mph?
(b) By what factor will the kinetic energy change if the speed of the motorcycle is decreased to 33mph?
(c) Where does the kinetic energy of the motorcycle go when the rider brakes to a stop?
A flask containing gaseous N2 is irradiated with 25 nm light. The irradiated moleculars of N2 can absorb the energy from the light photons. Using the following information indicate what species can from in the flask during irradiation.
How much heat is required to raise the temperature of a 464g of lead from -20.0C to 219C
A compound contains only carbon, hydrogen, and oxygen. Combustion of 10.68 mg of the compound yields 16.01 mg CO2 and 4.37 mg H20.
calculate the air velocity necessary to suspend 1.5 cm (screened) particles of shredded aluminum; ps = 2.70 g/cm^3 and r= 0.0012 g/cm^3.
A 460 mL sample of oxygen (O2) was collected by displacement of water at 24 ? C under a total barometric pressure of 1095 torr. What mass of dry oxygen was collected? The vapor pressure of water at 24 ? C is 22 torr
what is the rate constant for this reaction at 398 K ? I know that the answer is 1.2 s-1 but I don't know how to get it . Can anyone explain it to me please?
A piece of titanium metal with unknown mass is heated in boiling water to a temp of 99C. It is removed from the boiling water and dropped into a coffee cup calorimeter containing 83.5g water.
The compounds Na2O, CdS and ZrI4, all can be described as cubic closest packed anions with the cations in tetrahedral holes. What fraction of the tetrahedral holes is occupied for each case?
determine the molecular formula. Enter your formula as plain text, with carbon first, then hydrogen, the chlorine. So if the formula were C10H21Cl, you would enter C10H21Cl.
Substances A, B, and C can all act as oxidizing agents. In solution, a is green, B is yellow, and C is red. In the reactions in which they participate, they are reduced to A^-, B^-, and C^- ions, all of which are colorless.
if 77.0 mL of .150 M HCl (aq) is needed to neutralize all the NH3(g) from a 2.25 gram sample of organic material, calculate the mass percentage of nitroge in the sample.
4388 M KOH solution reacts with 50.60mL of CH3COOH solution, what is the molarity of the acid solution?
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