When NASA was communicating with astronauts on the Moon the time from sending to receiving was 1.28 s What is the distance to the Moon based on this?

Answer The radio signals travel at the speed of light, approximately 300,000 km/sec (186,000 mi/sec). The distance would be 1.28 x 300,000 or about 384,000 kilometers.*The actual time is an estimate, and ... Read More »

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The National Aeronautics and Space Administration NASA says that there is ice on some parts of the moon. What does this tell you about temperatures on these parts of the moon?

The message is that it's really cold there. As the moon has no atmosphere, there is no atmospheric pressure. Atmospheric pressure has a pronounced effect on the boiling point of water. If the water... Read More »

During a new moon, how much of the moon receives direct sunlight from the sun?

The sun always shines on half of the moon, including during a new moon when, from Earth, the moon seems to have gone dark. During a new moon, the moon is between the sun and Earth, the moon's sun-... Read More »

What is the diameter of a 55-gallon drum?

The exact diameter of a 55-gallon drum depends on the thickness of the metal and the country of origin. However, the average 55 gallon oil drum is typically 22 1/2 inches in diameter.Source:ORNL Ca... Read More »

What is the diameter&mass of neptune?

Scoured by winds that blow faster than the speed of sound, Neptune is frigid and dark and more than 30 times as far from the sun as the earth. Its mass is 1 x 10^26 kilograms, more than 17 times th... Read More »