If 25 cm' of a quantity of marbles has a mass of 45 g, calculate the density of the marble in kg/m
1 answer:
The density of the marble will be "0.18 kg/m³".
According to the question,
Volume of marbles,
- V = 25 cm³
By converting it into m, we get
- 0.25 m³
Mass,
- M = 45 g
By converting it into kg, we get
- 0.045 kg
As we know, the formula:
→
By substituting the values, we get
→
→
Thus the answer above is correct.
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boiling point is y
altitude is x
we are given
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At an altitude of 1000 feet, water boils at 210°F
so, first point is (1000,210)
so, x1=1000 , y1=210
At an altitude of 3000 feet, water boils at 206°F
so, second point is (3000,206)
so, x2=3000,y2=206
now, we can find slope
now, we can plug values
now, we can use point slope form of line
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so, point slope form of line is
now, we can plug x=8000
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So,
the boiling point of water at an altitude of 8000 feet is 196°F..........Answer