The distance from Earth to the Moon is approximately 240,000 mi. (d) Earth travels around the Sun at an average speed of 29.783 km/s. Convert this speed to miles per hour.

검증된 단계별 안내

Identify the given speed of Earth around the Sun: 29.783 km/s.

Convert kilometers to miles using the conversion factor: 1 km = 0.621371 miles.

Convert seconds to hours using the conversion factor: 1 hour = 3600 seconds.

Multiply the speed in km/s by the conversion factor to get the speed in miles per second.

Multiply the speed in miles per second by the conversion factor to get the speed in miles per hour.

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이 영상 해법은 위 문제에 도움이 된다고 튜터들이 추천한 것입니다.

영상 길이:

주요 개념

질문에 올바르게 답하기 위해 반드시 이해해야 하는 핵심 개념들은 다음과 같습니다.

Unit Conversion

Unit conversion is the process of converting a quantity expressed in one set of units to another. In this case, we need to convert the speed of Earth from kilometers per second (km/s) to miles per hour (mph). This involves using conversion factors, such as knowing that 1 kilometer is approximately 0.621371 miles and that there are 3600 seconds in an hour.

Speed and Velocity

Speed is a scalar quantity that represents the rate of distance traveled over time, while velocity is a vector quantity that includes both speed and direction. In this question, we are focusing on the speed of Earth as it orbits the Sun, which is essential for understanding how fast it moves through space, regardless of its direction.

Dimensional Analysis

Dimensional analysis is a mathematical technique used to convert units and check the consistency of equations. It involves analyzing the dimensions of the quantities involved and ensuring that the units cancel appropriately. This method is particularly useful in physics and chemistry for verifying that calculations yield results in the desired units.