3 years ago

What is the definition for nebula

2 answers:

7 0

The definition for nebula is : A cloud of gas and dust in outer space, visible in the night sky either as an indistinct bright patch or as a dark silhouette against other luminous matter.

maw [93]3 years ago

5 0

Nebulae "plural" are huge clouds of dust and gasses in outer space. Most of the gas is made up helium and also hydrogen. Nebulae are very big and can be be many light years away.

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Assume the population of a large city like New York City is about 4 × 10^6 people, with about 1.97 people per household. Approxi

Evgesh-ka [11]

So here are the given information:

4 x 10^6 people

1.97 people = 1 household

16.1 households = 1 piano

1 piano = 1 tuning/year

1 tuner = 3 tunings/working day

1 year = 250 working days 

Multiplying everything:

4 x 10^6 people x (1 household/1.97 people) x (1 piano/16.1 households) = 126115.33 pianos in NYC

126115.33 pianos x (1 (tuning/year)/1 piano) x (1 year/250 working days) x (1 working day/3 pianos/tuner) = 168.15 tuners

Therefore about 168 piano tuners in NYC.