How do we know the mass of Neptune?
A) the period and size of Neptune's orbit around the Sun
B) the orbital speed of Neptune moving around the Sun
C) the size and density of Neptune
D) the distance of Neptune from the Earth and its rotation period
E) the periods and sizes of the orbits of the moons around Neptune
Question 2
The total energy radiated by a blackbody depends on
A) the square of its temperature.
B) the fourth power of its temperature.
C) the fourth root of its temperature.
D) the square root of its temperature.
E) the cube of its temperature.
The Grants and natural selection of beak size among the medium ground finch.
From left to right: Size development, biometrical changes in the cranium, reduction of toes ...
Stars vary widely in size.
Orangutan males are twice the size and weight of females.
Embryonic Period
Given that sodium chloride is 39.0% sodium by mass, how many grams of sodium chl