Engineering, 15.04.2020 20:47 godisgoodallthoubxi7
Although typically, electricity customers are charged based merely on the total number of kilowatt-hours they consume, some utilities have payment plans designed to encourage customers to shift their energy use to off-peak times. Suppose that a utility charges most customers a flat 7.9 cents/kWh under their standard plan, but under a special time-of-use plan, it charges 3 cents/kWh for off-peak times (between 10 p. m. and 11 a. m. on weekdays) and 16 cents/kWh at other times. If a customer always consumes electricity at the same rate, which plan should he or she sign up for? (Text Problem Number 12)
Answers: 2
Engineering, 03.07.2019 15:10
Apiston-cylinder with a volume of 0.25 m3 holds 1 kg of air (r 0.287 k/kgk) at a temperature of 100 c. heat transfer to the cylinder causes an isothermal expansion of the piston until the volume triples. how much heat is added to the piston-cylinder?
Answers: 3
Engineering, 04.07.2019 18:10
Different types of steels contain different elements that alter the characteristics of the steel. for each of the following elements, explain what the element does when alloyed with steel.
Answers: 2
Engineering, 04.07.2019 18:10
Ifa component is made of two or more materials with different modulus of elasticity (e), it is called a composite member and we calculate the factorยทn". mention the formula for calculating n". also, ifn> 1, explain what will happen to the 1. transformed.gi) ifn 1, what will happen to the material when transformed material when
Answers: 1
Engineering, 04.07.2019 18:20
Describe one experiment in which the glass transition temperature and melting temperature of a totally amorphous thermoplastic material can be determined. show the relevant experimental results in a diagram which should be properly annotated with the two temperatures clearly marked. what is likely to happen to the curve in the diagram if the amorphous polymer is replaced by a thermosetting type?
Answers: 2
Although typically, electricity customers are charged based merely on the total number of kilowatt-h...
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