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Q: What is the wavelength of a wave that has a speed of 3 kms and a frequency of 12 Hz?
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What is the wavelength of a wave with a velocity of 50 ms and a frequency of 5 Hz?

10 m


How much mileage does 1 kg of CNG gives in a car?

Whatever mileage you are getting on petrol...CNG gives you +5 Kms of that.. So on a full tank of 8 KGS, ideally a car runs for 160 kms..i.e 20 kms per kg. ~Manu


How far could you lift one kilo using a megajoule?

Use, Workdone= Force x distance Now, Work Done = 1 Mega Joule= 1x10^6 Joule Force= massxg=1x9.81=10(approx.) distance=work done/ force =1x10^6/10=1x10^5 meters or 100 km . so you can lift a kg 100 kms(approx.) using 1MJ of energy. Hope this answers your question .


How much energy does a nuclear reactor produce daily?

Different nuclear plant designs produce different amounts of power, however most nuclear plants in the US produce approximately 1.0 GW of power, and that amount is reasonably close to the average. To calculate the amount of energy produced in one day, all we need to know is the power output and the number of seconds in one day. For this calculation, I am going to assume that the plant produces the same amount of power continuously, which is almost always the case except when the plant is shut down for refueling/maintainance activities or if there is some problem that does or could affect worker safety or the environment such that the plant must reduce its power output or shut down. Energy produced per day @ 100% output = 1.0E+09 J/s x 60 s/min x 60 min/hr x 24 hr/day = 8.6E+13 J/day, where J = Joule; the kms unit for energy. In other terms, 8.6E+13 J is the same as 86 trillion Joules of energy, and there are 4.184 Joules in 1.000 calorie.


Why not fast neutron use in fission?

Because slow neutrons are the most efficient way to cause U235 to fission. The U235 nucleus is said to have a large cross section for the capture of slow neutrons, much larger than for fast neutrons.