I have eartth sience homework due TOMORROW! Herse the question- If a rock has a mass of o.15 kg on the moon, what is its mass on earth? and If a space colonistweighs 800.1 N on the earth what would they weigh on the moon?- what would colonist need to have to protect them from extreme temps on the moon? and I need the formula to find miles per hour when all you have is the distance and time. Any CORRECT answers will be much appriciated!
2007-01-25 09:49:51 · 6 answers · asked by critter 2 in Science & Mathematics ➔ Astronomy & Space
Make it simple! I'm in Junior High!
2007-01-25 10:16:55 · update #1
BAD, BAD answer!!! It is BADLY incorrect to say that the moon does not rotate on an axis. The moon certainly does rotate on its axis. This is one of the basic things people learn in basic, elementary, simple-minded school science. The moon's axis is exactly parallel to the earth's axis, and the moon rotates on its axis every 29.25 days, which is also the time it takes for the moon to revolve in its orbit around the earth. Nobody knows the reason for this coincidence. It just worked out that way. The effect is that the same side of the moon always faces the earth. If it were true that the moon did not rotate, then we would see all sides of it as it went around the earth in its orbit.
The person that wrote that needs to start over in the sixth grade.
Now, the other questions:
MASS is the same everywhere. So the mass of the rock is still 15kg on earth. Weight is an effect of gravity, so it would weigh 90 kg on earth.
A space colonist that weighs 800.1 N on earth would weigh 1/6 of 800.1, or 133.35 N on the moon.
For protection against temperature extremes, carry along a gas-tight insulated enclosure with a heater/air conditioner, and plenty of batteries for it. It needs to have an air lock so you can get in and out of it if you were walking around outside in an environmental suit.
And speed in miles per hour is equal to distance in miles divided by time in hours.
Have fun in middle school.
2007-01-25 15:29:39 · answer #1 · answered by aviophage 7 · 0⤊ 0⤋
mass is constant. an object weighing 6lbs. on the earth would weigh 1lb. on the moon. so, 1/6 weight of an earth object on the moon
( one divided by 6 )
to protect from extreme temp's, protection from radiation, since the moon has no protecting atmosphere. insulation and a heater on the dark side of the moon, the moon does not rotate on an axis.
convert the distance into miles ( or fractions of a mile, decimals are easier ) and multiply distance x time. you may have to convert time into units of 1hr. or fractions thereof
60 miles x 1 hour = 60 miles per hour ( equal to 1 mile per minute.)
2007-01-25 12:31:28 · answer #2 · answered by Anonymous · 0⤊ 1⤋
1. mass on moon and mass on earth are the same. wieght is different
2. Weight = Mass X Gravity
3. Heating and Air conditioning
4. Divide distance by time to get speed.
2007-01-25 10:07:39 · answer #3 · answered by Anonymous 3 · 0⤊ 1⤋
Okay. First: mass is constant no matter where you go. Second: 800.1 N is about 80.01 kg, so just multiply 80.01 by the acceleration due to gravity on the moon. Third: uhhhh, space suits? Fourth:
speed = distance/ time (i.e. miles/hr). Hope that helped. Pretty basic stuff, just gotta memorize it.
2007-01-25 10:04:39 · answer #4 · answered by the glob 1 · 0⤊ 1⤋
Easy, a rock with 0.15 kg on the moon will have 0.15 kg on Earth. Mass doesn't change with location.
2007-01-25 10:19:22 · answer #5 · answered by Anonymous · 0⤊ 1⤋
I'll answer *one* question. If a rock has a mass of 0.15 kg on the moon, what is its mass on earth?
Since mass is invariant, its mass is 0.15 kg, everywhere in the universe.
2007-01-25 10:02:39 · answer #6 · answered by Jerry P 6 · 0⤊ 1⤋