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Develop a use case diagram for renting acar. Include actors representing a fleet mechanic, a rental agent, and acustomer, and use cases for reportMechanicalProblems(), orderRepairs(), makeRepairs(), makeReservation(), rentCar(), andreturnCar().Develop an activity diagram thatillustrates how to rent a car.Develop a sequence diagram thatillustrates how to rent a car.
Car manufacturers are developing engines that use H2 as fuel. In Iceland, Sweden, and other parts of Scandinavia, where hydroelectric plants produce inexpensive electric power, the H2 can be made industrially by the electrolysis of water.
as a system increases in volume it absorbs 52.5 j of energy in the form of heat from the surroundings. the piston is
Who does the first ionizaiton energy of the alkali metal in a given period compare with the first ionization energy of the halogen in the same period. What is the result in terms of how these elements tend to react with each other
35.5 grams of an unknown substance is heated to 103.0 degrees celsius and then placed into a calorimeter containing
question 6g of metal m react with 23.66g of chlorine to form 29.66g of the metallic chloride. find the empirical
The half-life for a first-order reaction is known to be 680 seconds at a given temperature. What is the rate constant at this temperature
If a graduated cylinder contains 155 g of water a 11.0 g piece of iron (density = 7.86 g/cm3) and a 16.0 g piece of lead are added. Explain what is the new water level in the cylinder
If 22 mL of 7.0 M H2SO4 was spilled, define what is the minimum mass of NaHCO3 that should be added to the spill to neutralize the acid
An unknown compound contains only carbon, hydrogen, and oxygen.Combustion of 5.50 of this compound produced 8.07 of carbon dioxide and 3.30 of water.
For the hypothetical first order reaction A yields products, k= 0.0206 s-1. if the initial concentration of A is 0.165 M, how long would it take for A to be 88.7% consumed
The volume of a substance increases with increasing temperature and decreases with increasing pressure. These properties, respectively are tabulated quantitatively as the cubic expansion coefficient, α = (1/Vm) (δVm/δT)P, and the isothermal compre..
0.30 g of hydrogen chloride (HCl) is dissolved in water to make 4.5 L of solution. What is the ph of the resulting hydrochloric acid solution
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