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3.4 cm per year
38.197 minutes.
Infinity. Step machines don't move when you use them.
If you get the speed of the rock then you can use Time= distance/ speed So all you need is the speed and you can work it out
Since the moon has little to no atmosphere, sound cannot move as it has no medium to travel thru.
When a wheelbarrow is used, the person pushing it supplies mechanical energy to overcome frictional forces and lift the load. Some of the person's chemical energy from metabolism is converted into kinetic energy to move the wheelbarrow, and potential energy when lifting the load.
A lever is a tool used to help you exert pressure on something, usually in order to move or lift it. Levers have three main parts: effort, which is the part that you focus your strength on; resistance, which is the something you are trying to move; and a fulcrum, which is the pivot point of the lever that allows it to focus your strength to accomplish the task. On a wheelbarrow the handlebars are the effort, the bucket where you put stuff is the resistance, and the wheel is the fulcrum. You use your strength to lift the handlebars, causing the wheelbarrow to pivot on the wheel to move the load within the bucket area. The end result is that you get to move whatever it is with less work than it would take if you were lifting and carrying the same items without the help of a lever.
month
6minute
Rock caverns are not built they are eroded out of solid rock by natural processes.
4.5
a 100 years
2 weeks
10,000,000+ years
yes
thousands to millions of years
a very long time