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Yes the only thing a machine changes is force,distance or direction
if only the direction changes,the input force will be the same as the output force.the mechanical advantage will always be 1.
if only the direction changes,the input force will be the same as the output force.the mechanical advantage will always be 1.
well the advantage of that is pie, not math pie but pie that you eat
The velocity of object always changes with wanted or unwanted outer forces.
In a real machine, part of the energy (or power) is always wasted.
President: Barrack Obama (always changes) Vice President: Joe Biden (always changes) Speaker of The House: John Boehner (always changes) Secretary of State: John Kerry (always changes)
No, it always changes
The kinds of changes in substances that are always physical changes are changes in the state. This is the change from solid, to liquid and then to gas and the reverse.
I was using a fax machine before and i always getting errors when there were problems with the land line, or the paper was out, or the ink was out.
Because there is always going to be friction, the efficiency of any machine will always be less then 100 percent.
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