A Spaceship of Mass M Circles a Planet (Mass =

question 47

Multiple Choice

A spaceship of mass m circles a planet (mass = M) in an orbit of radius R. How much energy is required to transfer the spaceship to a circular orbit of radius 3R?

• A) GmM/(2R)
• B) GmM/(3R)
• C) GmM/(4R)
• D) GmM/(6R)
• E) 3GmM/(4R)

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Definitions:

Main Effects

The direct influence of an independent variable on a dependent variable in an experimental study.

Independent Variable

A variable in an experiment that is manipulated or changed to observe its effect on a dependent variable.

Dependent Variable

In statistical analysis, this is the variable that is being tested and measured, often seen as the outcome influenced by independent variables.

Marginal Mean

The mean of a variable across levels of another variable, typically in the context of analysis of variance.