Planet Roton Has a Mass of 4

question 47

Multiple Choice

Planet Roton has a mass of 4.0* 1023 kg and a radius of 2.0 * 106 m. With what speed should a space probe be launched from the surface of Roton so as to achieve a maximum distance of 3.0 * 106 m from the centre of Roton?

• A)4.2 km/s
• B)3.9 km/s
• C)3.0 km/s
• D)3.4 km/s
• E)6.0 km/s

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Definitions:

Gluteus Maximus

The largest and most superficial of the three gluteal muscles, involved in the movement of the hip and thigh.

Relative Size

A principle of perception that allows the determination of an object's size based on its perceived distance.

Diaphragm

A dome-shaped, muscular partition separating the thorax from the abdomen in mammals, playing a major role in breathing.

External Intercostals

Muscles located between the ribs that assist with the mechanics of breathing by elevating the ribcage.