Two Objects Are in Circular Orbits of Different Radii Around

question 46

Multiple Choice

Two objects are in circular orbits of different radii around the Sun.Which object has the highest orbital speed?

• A)The one closest to the Sun.
• B)The one farthest from the Sun.
• C)Once in orbit around the Sun,all objects have the same orbital speed regardless of distance from the Sun.It is the greater radius and greater resulting circumference that causes the object farther from the Sun to take longer to complete an orbit.
• D)This cannot be found without knowing the relative masses of the objects.

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Definitions:

Death Rate

The ratio of deaths in an area to the population of that area; usually expressed per 1000 individuals per year.

Carrying Capacity

The maximum population size of a biological species that can be sustained by a specific environment, given the food, habitat, water, and other necessities available in the environment.

Lag Phase

The initial period of slow growth or no growth that occurs in a microbial population when it is first introduced to a new substrate or environment.

Biotic Potential

The maximum reproductive capacity of an organism under optimum environmental conditions.