Physics, 16.09.2019 17:10 joejoefofana
Acrystal growth furnace is used in research to determine how best to manufacture crystals used in electric components for the space shuttle. for proper growth of the crystal, the temperature must be controlled accurately by adjusting the input power. suppose the relationship is given by the following equation, where t is the temperature in degrees celsius and w is the power input in watts. t(w) = 0.1w2 + 2.157w + 20
(a) how much power is needed to maintain the temperature at 197°c? (give your answer correct to 2 decimal places.) x watts
(b) if the temperature is allowed to vary from 197°c by up to ±1°c, what range of wattage is allowed for the input power? (give your answer correct to 2 decimal places.) x watts (smaller value) x watts (larger value)
Answers: 3
Physics, 22.06.2019 09:40
(a) assume the equation x = at^3 + bt describes the motion of a particular object, with x having the dimension of length and t having the dimension of time. determine the dimensions of the constants a and b. (use the following as necessary: l and t, where l is the unit of length and t is the unit of time.) (b) determine the dimensions of the derivative dx/dt = 3at^2 + b. (use the following as necessary: l and t, where l is the unit of length and t is the unit of time.)
Answers: 1
Physics, 22.06.2019 10:00
In a heat engine if 1000 j of heat enters the system the piston does 500 j of work, what is the final internal energy of the system if the initial energy was 2000 j? 1. write the equation 2.list out your known variables 3.plug the numbers into the equations 4.solve 5.write your solution statement that includes initial energy and final
Answers: 3
Physics, 22.06.2019 12:30
Consider a hydrogen atom in the ground state. what is the energy of its electron? =e= jj now consider an excited‑state hydrogen atom. what is the energy of the electron in the =5n=5 level? =e5= j
Answers: 3
Acrystal growth furnace is used in research to determine how best to manufacture crystals used in el...
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