What is the fraction of a hectogram in a centigram?
Answer
10^4
10^(-4)
10^(-2)
10^2
Question 18
Question
What is the fraction of a cubic kilometer in a cubic millimeter?
Answer
10^(-12)
10^(-6)
10^(-9)
10^(-18)
Question 19
Question
27500 people live in the Duchy of Grand Fenwick, which has a land area of a square 5.8 km on each side. How many people live there per square km?
Answer
819
817
810
820
Question 20
Question
One of the exoplanets in the TRAPPIST-1 System recently discovered has a radius larger than that of Earth by a factor of 1.13. How much bigger is the surface area of this planet than Earth? [SA=4(pi)(r^2)]
Answer
1.28 times surface area of Earth
1.3 times surface area of Earth
2 times surface area of Earth
1.276 times surface area of Earth
Question 21
Question
Toward the end of their lives, many stars become much bigger. assume that they remain spherical in shape and that their masses do not change in this process. If the radius of a star increases by a factor of 11.4, by what factor does its CIRCUMFERENCE change? [C=2(pi)r]
Answer
1.48x(10^3)
11.4
22.8
1.30x(10^2)
Question 22
Question
Toward the end of their lives, many stars become much bigger. Assume that they remain spherical in shape and that their masses do not change in this process. If the radius of a star increases by a factor of 11.4, by what factor does its SURFACE AREA change?
Answer
1.30x(10^2)
1.48x(10^3)
11.4
22.8
Question 23
Question
What is the best estimate for the reading of the temperature (in Celsius) in the photo provided?