lab Space Speeds for Distance Ed

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Snead State Community College *

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30509

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Physics

Date

Apr 3, 2024

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pdf

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1

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PHS 111 - Space Speeds Lab - Maria Gomez, January 27, 2023 Revised 8/5/19 A) Find the speed of the moon as it orbits the earth. Assume that the orbit of the moon is circular. SHOW ALL WORK! 1) The average distance from the moon to the earth is 385,200 km. Convert this distance to miles by multiplying by 0.6 miles/km. This is the radius of the moon’s orbit. 385,200km= 0.6mi/km+ 231,120mi 2) Calculate the distance of the moon’s orbit using the formula, distance = circumference=2 r. * π * C= 2 (231,120= 1,451,433.6 mi π 3) Search online for the time in hours taken by the moon to travel around the earth one time (one orbit). 27 days 7 hours 43 minutes 27.32166 x 24hr/1 day = 655.72 hr 4) Using the formula, speed = distance/time, calculate the approximate speed of the moon as it travels around the earth. It will be in miles per hour. 1,451,433.6 mi/655.72 hr = 2213.5 miles per hour B) Find the speed of the New Horizons space probe. SHOW ALL WORK! 1) Search online for the distance from the Earth to Pluto in miles when Pluto is at its furthest point beyond the solar system. 3.0927 billion miles 2) The New Horizons space probe left Earth on Jan 19, 2006. It reached Pluto on July 11, 2015. Calculate the number of years and months this took and convert this time in days. Multiply the number of days by 24 hours/day. 9 years, 5 months and 26 days 3460 days 3) Using the formula, speed = distance/time, calculate the approximate speed of the New Horizons space probe. It will be in miles per hour. speed = 3.0927 billion miles/3460 days =36,400 miles per hour C) Compare the speed from part A to the speed from part B. Which one travels the fastest? Is this surprising? Explain why you think one travels faster than the other. Part b travels faster. It also has further to travel and does so at a faster speed
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