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If the moon orbits the earth at a speed of approximately 2200 miles/hr
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20 Apr 2023, 15:29
20 Apr 2023, 15:29
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Question Stats:
84% (00:59) correct
15% (01:07) wrong based on 13 sessions
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If the moon orbits the earth at a speed of approximately 2200 miles/hr, then which of the following is closest to the distance, in miles, covered by the moon in 30 days?
1400000
1500000
1600000
1700000
1800000
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1400000
1500000
1600000
1700000
1800000
Post A Detailed Correct Solution For The Above Questions And Get A Kudos.
Question From Our Project: Free GRE Prep Club Tests in Exchange for 20 Kudos
\(\Longrightarrow\) GRE - Quant Daily Topic-wise Challenge
\(\Longrightarrow\) GRE Time/Speed/Distance Problems - Tips and Tricks with examples
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Re: If the moon orbits the earth at a speed of approximately 2200 miles/hr
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22 Apr 2023, 00:48
22 Apr 2023, 00:48
1
Expert Reply
The moon takes approximately 27.3 days to orbit the Earth once. Therefore, in 30 days, it will orbit the Earth approximately 30 / 27.3 = 1.0989 times.
The distance covered by the moon in one orbit is the circumference of the moon's orbit, which can be calculated as 2 × π × the moon's average distance from the Earth. The average distance from the Earth is about 238,855 miles.
Therefore, the distance covered by the moon in one orbit is:
2 × π × 238,855 miles = 1,499,701.6 miles (rounded to the nearest tenth)
Multiplying this by the number of orbits in 30 days gives:
1.0989 × 1,499,701.6 miles = 1,648,983.8 miles (rounded to the nearest tenth)
Therefore, the closest option to the distance covered by the moon in 30 days is (C) 1600000 miles.
The distance covered by the moon in one orbit is the circumference of the moon's orbit, which can be calculated as 2 × π × the moon's average distance from the Earth. The average distance from the Earth is about 238,855 miles.
Therefore, the distance covered by the moon in one orbit is:
2 × π × 238,855 miles = 1,499,701.6 miles (rounded to the nearest tenth)
Multiplying this by the number of orbits in 30 days gives:
1.0989 × 1,499,701.6 miles = 1,648,983.8 miles (rounded to the nearest tenth)
Therefore, the closest option to the distance covered by the moon in 30 days is (C) 1600000 miles.
Re: If the moon orbits the earth at a speed of approximately 2200 miles/hr
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26 Jul 2023, 08:11
26 Jul 2023, 08:11
sorry i cant understand it. can someone explain again?
