Halley's Comet Has an Elliptical Orbit Around the Sun with a Period

question 22

Multiple Choice

Halley's comet has an elliptical orbit around the Sun with a period of 76.0 years. At its closest approach (perihelion) it is 8.82 × 10¹⁰ m from the Sun and has a speed of 54.6 km/s. How fast is it moving at its furthest point from the Sun (aphelion) ? The mass of the Sun is 2.00 × 10³⁰ kg and G = 6.67 x 10^-11 N·m²/kg².

• A) 604 m/s
• B) 802 m/s
• C) 1070 m/s
• D) 1540 m/s
• E) 1860 m/s

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Definitions:

Deception

The act of misleading or falsely persuading others, often for personal gain or to avoid negative consequences.

Random Assignment

A method used in experiments to evenly distribute participants across various experimental conditions, minimizing biases and ensuring statistical validity.

Generalizable

The extent to which findings from a study or research can be applied to larger populations or different contexts beyond the original subjects.

Internally Valid

The degree to which the results of an experiment can be attributed to the manipulation of the independent variable rather than other factors.