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PSU Astro 7N Exam 1
- Exam (elaborations) • 12 pages • 2023
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What two properties of a planet affect the gravity we feel on its surface? - Answer- Mass and radius 
 
Two planets have the same radius. If Planet A is 5 times more mass than Planet B, how does gravity differ on the surfaces of the two planets? - Answer- Gravity is 5 times stronger on planet A 
 
Say that there were a planet X in our Solar System with a mass 1/4 the mass of Earth and a radius 1/2 the radius of Earth. How will the gravity on its surface compare to the surface gravity of Earth? -...
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PSU STAT200 QUESTIONS WITH CORRECT ANSWERS|GRADED A
- Exam (elaborations) • 15 pages • 2023
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Decide if the sample is representative (or not) of the population for the question of interest. Question: Average daily hours of sleep over a one-year period. Sample: Hours of sleep for 100 randomly selected students the night before an exam. Population: All students in the university. CORRECT ANSWER Not representative 
 
A randomly selected sample of 1,000 college students was asked whether they had ever used the drug Ecstasy. Sixteen percent (16% or 0.16) of the 1,000 students surveyed said th...
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Chapter 1: Law, Crime, Courts, and Controversy (Key Terms)
- Flashcards • 43 items • 2019
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