What is the fraction of a hectogram in a centigram?
Respuesta
10^4
10^(-4)
10^(-2)
10^2
Pregunta 18
Pregunta
What is the fraction of a cubic kilometer in a cubic millimeter?
Respuesta
10^(-12)
10^(-6)
10^(-9)
10^(-18)
Pregunta 19
Pregunta
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?
Respuesta
819
817
810
820
Pregunta 20
Pregunta
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)]
Respuesta
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
Pregunta 21
Pregunta
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]
Respuesta
1.48x(10^3)
11.4
22.8
1.30x(10^2)
Pregunta 22
Pregunta
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?
Respuesta
1.30x(10^2)
1.48x(10^3)
11.4
22.8
Pregunta 23
Pregunta
What is the best estimate for the reading of the temperature (in Celsius) in the photo provided?