using Naismiths rule, how long would it take to walk to the moon?
368075
The average distance from the Earth to the Moon is 384,403 kilometers.  Naismith's Rule of Thumb is 5 kilometers/hour.  Assuming the trip from the Earth to the Moon is level, the trip would take 76,880.6 hours (384,403/5) or 3202.4 days or 8.8 years if you traveled 24 hours per day.  If you allow for 6 hours of sleep a day, it would take 4271.1 days or 11.7 years.\n\nIf one was to count the entire distance to the moon as an ascension, this would add 507,338 hours (304,403 *1000 to convert to meters. 304,403,000/300 = 1,014,676 - the number of 1/2 hours to add.  1,014,676/2=507,338 - number of hours).\n\nThis would make the total trip time 584,218 hours or 24,342 days or 66.7 years.\n\nBetter pack a lunch...
399340
Well, just taking the rough slowing of the earth's rotation of about 1 second every 60,000 years, and extrapolating out to when it will be tidally locked with the moon (it will take about 40 day for us and the moon to turn around once at that point), seems to indicate that it will take about 200 billion years for us to be tidally locked with the Moon.  The sun will become a red gaint in another 5 billion years, so the chances of anyone on this planet being around to notice anything significant would be very, very slim.
788671
You might as well ask how to get to the moon?\nThere are twenty main titles before you can start choosing the detail?
78174
The average distance from the Moon to the Earth is 384,403 kilometers (238,857 miles), and its orbit is elliptical.
1041049
The trick is to remember that we want only the one way time for the radar signal ---\n\nRound trip time is 2.7 seconds. One way trip time is 1.35 seconds.\n\n1.35 seconds times the speed of light (299,792,458 meters per second) = 404,719,818.3 meters to the moon\n\n404,719,818.3 meters = 404719.8183 kilometers to the moon
28809
The Earth's circumference is 23,627 miles or about 24,000 miles and the average distance between the Earth and the Moon is 238,900 or about 240,000 miles.  If the students are learning the metric system, the figures are 38,025 km or about 38,000 km for the Earth's circumference and 384,400 km for the average Earth-Luna distance.
283146
you could make it in one second or beyond 12 hours depending on where you are, excluding flight delays at al. it should not actually take long enough to measure in days, unless you are travelling by boat/ship
58
It depends on what you are sending.  The Apollo missions were the last set of *manned* missions to the moon, and here is the travel time:\nLaunched: 16 July 1969 UT 13:32:00 (09:32:00 a.m. EDT)<br />\nLanded on Moon: 20 July 1969 UT 20:17:40 (04:17:40 p.m. EDT)\nIt took about 4 days to get there.  Rocket technology has not change too much since then so you can expect that getting people to the moon at this point would take about the same amount of time.\nIf you are dealing with a non-human payload, you may be able to cut down time, both because it is likely lighter, and because you don't need to worry as much about damaging G-forces.\nI've included a link that has the history of all missions to the moon, manned and unmanned.
3786
238,855 miles give or take a couple miles (seriously, it varies)\n\nI used Frink to look it up.  Frink is an incredibly handy calculation tool on the web.\n\n\nWikipedia says the moon is an average distance of 238,857 miles from the earth. I just checked with it to verify the accuracy of Frink, which looks pretty good.\n\nNeither the moon nor the Earth are perfectly round.  In fact, the Earth is kind of pear-shaped and has some rather high mountain ranges on its surface.\n\nAfter you are done doing serious analysis of the moon you should play around with Frink; it is pretty amazing and has built-in constants defined in it for all kinds of measurements having to do with the earth and moon. It also makes it very easy to convert values to different units of measurement.
483427
That greatly depends on the kind of spacecraft you use. The Apollo missions took about three days to reach the moon, but the New Horizons spacecraft (the one sent early 2006 to study Pluto) is the fastest man-made object ever made, it went past the moon's orbit in merely nine hours.
81485
If you are asking "How long is one day on the moon?", i.e. how long does it take the moon to rotate on its axis, the answer 29 days, 12 hours, 44 minutes and 3 seconds long, the same as the period from full moon to full moon.
866515
3 days. That is how long all the Apollo missions took. So the round trip is 3 days there, 3 days back, plus however long they stayed in lunar orbit.
371904
A month. That's why we only see one side of the moon. (Hence the Pink Floyd song Dark Side of the Moon). :)
15135
well, i'll answer your questions in reverse order.\n\nneptune's average distance from the sun is about 4.5 billion kilometers, or about 30 times as far out as the earth.  it has a diameter of around 50,000 kilometers, which means it's about 4 times the size of the earth.\n\nas for how long it would take - that entirely depends on what kind of spaceship you used to get there.  if you had a fictional spacecraft that could go nearly the speed of light, it would take around 3 hours.  if you used the same kind of spacecraft that the apollo missions used, you would be traveling around 25,000 MPH.  this is around 40,000 kilometers per hour, so:\n\n4.5 billion kilometers / 40,000 kilometers per hour = 112500 hours = 13 years or so.
969045
Are you taking into account the radius of the moon? The equations you've provided treat "r" as the distance between the centers of mass of each object. Therefore:\n\nr = radius of the moon + distance from it's surface\n\nr = 1785 km + 111 km\n\nr = 1,896,000 m\n\nSubstituting this into your equations provides:\n\nT = 2*pi*sqrt((1896000)^3/(6.674x10^-11 * 7.3x10^22))\n\nT = 7431.6 s = 123.9 min\n\nAdditionally:\n\nV = sqrt((6.674x10^-11 * 7.3x10^22) / 1896000)\n\nV = 1603 m/s\n\nHope that clears things up a bit! :)
587733
Light travels at 186,282 miles per second.  So multiply by 60 (seconds per minute) by 60 (minutes per hour) by 24 (hours per day) by 365 (days per year), which gives 5,874,589,152,000 miles for 1 light year.\n4.2 light years works out to 24,673,274,438,400 miles.  Quite a long walk :) \nHere's a way of illustrating this:\nIt takes light 1.27 seconds to travel the 238,000 miles from the Earth to the Moon.  If this distance is represented by 1.27 inches, then an object one light year away would be 636 miles away, and a star 4.2 light years distant would be 2,670 miles away - about 200 miles more than from New York to Los Angeles!
567039
Around 234,000 miles from the moon, average of 93.5 million miles (one Astronomical Unit{AU}) to the Sun. The extremes are (if in Northern Hemisphere) 92 million miles in winter, and 95 million miles in summer.