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- The intensity of the Sun's radiation that reaches a particular point on Earth's atmosphere is 1.06 kW/m2. Convert this to W/cm2. Give your answer with two digits of precision.A maser is a laser-type device that produces electromagnetic waves with frequencies in the microwave and radio-wave bands of the Part B electromagnetic spectrum. You can use the radio waves generated by a hydrogen maser as a standard of frequency. The frequency of these waves is 1,420,405,751.786 hertz. (A hertz is another name for one cycle per second.) A clock controlled by a hydrogen maser is off by only 1 s in 100,000 years. (The large number of significant figures given for the frequency simply illustrates the remarkable accuracy to which it has been measured.) How many cycles occur in 1.4 h? ? N = cyclesa) A typical small passenger electric vehicle has a range of 200 km on an electric charge of 33 kWh. Convert this number into J/km (Joules per kilometer traveled). b) A comparably sized gasoline powered vehicle to (a) is rated as 25 miles per gallon. Convert this number into J/km (Joules per kilometer traveled). c) If gasoline costs $10.00 per gallon, and electricity $0.30 per kWh what is the difference in the cost of fuel per kilometer travelled between the electric vehicle in (a) and the gasoline powered vehicle in (b)? d) Surveys of EV owners show that they charge at home 70% of the time. Let us assume that for the remaining 30% they charge at a 60 kW rated "fast-charge” station. If patterns of travel remain the same, but we swap all our gasoline vehicles for electric vehicles, what is the ratio between installation of fast charging stations to gasoline pumps retired. e) The Chicago Transit Authority has about 2700 buses that travel a total of 240,000 miles daily. A typical bus…
- A maser is a laser-type device thatproduces electromagnetic waves with frequencies in the microwaveand radio-wave bands of the electromagnetic spectrum. You can use theradio waves generated by a hydrogen maser as a standard of frequency.The frequency of these waves is 1,420,405,751.786 hertz. (A hertz is anothername for one cycle per second.) A clock controlled by a hydrogenmaser is off by only 1 s in 100,000 years. For the following questions,use only three significant figures. (The large number of significant figuresgiven for the frequency simply illustrates the remarkable accuracyto which it has been measured.) How many cycles would have occurred during the age of the earth, which is estimated to be 4.6 * 109 years?A maser is a laser-type device thatproduces electromagnetic waves with frequencies in the microwaveand radio-wave bands of the electromagnetic spectrum. You can use theradio waves generated by a hydrogen maser as a standard of frequency.The frequency of these waves is 1,420,405,751.786 hertz. (A hertz is anothername for one cycle per second.) A clock controlled by a hydrogenmaser is off by only 1 s in 100,000 years. For the following questions,use only three significant figures. (The large number of significant figuresgiven for the frequency simply illustrates the remarkable accuracyto which it has been measured.) How many cycles occur in 1 h?A maser is a laser-type device thatproduces electromagnetic waves with frequencies in the microwaveand radio-wave bands of the electromagnetic spectrum. You can use theradio waves generated by a hydrogen maser as a standard of frequency.The frequency of these waves is 1,420,405,751.786 hertz. (A hertz is anothername for one cycle per second.) A clock controlled by a hydrogenmaser is off by only 1 s in 100,000 years. For the following questions,use only three significant figures. (The large number of significant figuresgiven for the frequency simply illustrates the remarkable accuracyto which it has been measured.) By how many seconds would a hydrogen maser clock be off after a time interval equal to the age of the earth?
- A maser is a laser-type device thatproduces electromagnetic waves with frequencies in the microwaveand radio-wave bands of the electromagnetic spectrum. You can use theradio waves generated by a hydrogen maser as a standard of frequency.The frequency of these waves is 1,420,405,751.786 hertz. (A hertz is anothername for one cycle per second.) A clock controlled by a hydrogenmaser is off by only 1 s in 100,000 years. For the following questions,use only three significant figures. (The large number of significant figuresgiven for the frequency simply illustrates the remarkable accuracyto which it has been measured.) What is the time for one cycle of the radio wave?if A = 31-2j and B = -i -4). calculate: ca) A+B (b) A-B (c) |A+B] (d)LA-B) (e) direction of A+B and direction of A-BWhen a electrical appliances whose power usage is X watts is run for Y seconds it uses X×Y joules of energy. The energy unit used by electrical utilities in their monthly bills is the kilowatt-hour (kwh, that is, 1 kilowatts used for 1 hour) how many joules are there in a kilowatt hour? If electricity cost per $0.09 per kilowatt hour, how much does it cost per megajoule?