Answer:
8 m/s
Explanation:
Quasars are thought to be the nuclei of active galaxies in the early stages of their formation. A typical quasar radiates energy
at the rate of 1040 W. At what rate is the mass of this quasar being reduced to supply this energy? Express your answer in solar mass units per year, where one solar mass unit (1 smu = 2.0 ✕ 1030 kg) is the mass of our Sun.
1 answer:
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Let the distance between points a and b = d
For the women starting from a her velocity be and for the women starting from b her velocity be
Let the rising time of sun = x AM
We have =
and we also have =
At they meet means, they both travel a combined distance of d
So we have
Substituting velocity values we will get
x= 6 AM or 18 AM, but 18 AM is not possible,
Sun rise time is 6 AM
Heat required to raise the temperature of water is given as
here we have
m = 100 g = 0.100 kg
s = 4183 J/kg C
now we can use the above equation
so here it requires 20920 J heat to raise the temperature of 100 g water by 50 degree C