Look at the moon real hard, and eventually the answer will come into focus.
The mathematical equation which describes how to measure the distance from Earth to the moon using Earth's diameter as a unit of measure is d = Dcot(p/2)/2 Where d is the distance from Earth to the moon, D is the diameter of the Earth and p is the angle of parallax subtended at moon by the diameter of the Earth.
trigonometry
You would weigh more on Earth than on the Moon. This is because weight is a measure of the force of gravity acting on an object, and the gravitational pull on Earth is stronger than on the Moon.
It's a measure of how far apart they are.
That is a month.
Yes it is quite possible as we are able to measure the period of revolution of moon around earth. We have expression for period of revolution in which we have mass of moon as one factor. So moon's mass can be easily computed.
The purpose of placing a retroreflector on the moon is to allow scientists to accurately measure the distance between the Earth and the moon by reflecting laser beams back to Earth.
Feet
a stick.
Laser
You don't need a mathematical equation. All you need are the numbers.In round, approximate numbers:-- Earth diameter = 12,750 km-- Moon diameter = 3,475 kmIf you want a 'ratio' to amaze your friends with, then you can use an actualmathematical equation for that:The ratio of the Earth's diameter to the Moon's diameter isDE / DM = 3.669 (rounded)-- The linear dimensions of the Earth are 3.669 times as large as those of the moon.By simple geometry, then, you can say that . . .-- the Earth's surface area is 13.462 times that of the moon,-- Earth's volume is 49.39 times the Moon's volume.(If you're in the league of those that are comfortable with mathematical equationsand like to toss them around, then you find that some consider the phrase "timessmaller" to be quite arbitrary, while to others, it has no meaning at all.)
Kilometers