Two Planets Have Masses M and M, and the Ratio

question 28

Multiple Choice

Two planets have masses M and m, and the ratio M/m = 25. The distance between the planets is R. The point P is between the planets as shown, and the distance between M and P is x. At P the gravitational forces on an object due to M and m are equal in magnitude. The value of x is

• A) 5R/6.
• B) 25R/36.
• C) R/25.
• D) 6R/5.
• E) None of these is correct.

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Definitions:

Cognitive Development

The development of cognitive processes such as memory, problem-solving abilities, and making decisions, starting in childhood and progressing through teenage years into adult life.

Piaget

Refers to Jean Piaget, a Swiss psychologist known for his pioneering work in developmental psychology and his theory of cognitive development in children.

Thought Processes

The mental operations that allow individuals to perceive, understand, remember, and think about information.

Assimilation

A cognitive process in which new information is integrated into existing schemas or knowledge structures.