Earth's magnetic poles<span> are located near, but not quite exactly at, our planet's </span>geographic poles<span> (the "spin axis" on a globe). Compasses work as direction-finding devices because </span>Earth<span> has a </span>magnetic<span> field. The needle of a compass, itself a small bar </span>magnet<span>, points </span>in the<span> direction of the </span>magnetic pole<span>.</span>
If they are connected exactly as shown, nothing can happen.
Answer:
d = 25.51 m
Explanation:
the law of the conservation of energy says that:
where is the inicial energy, is the final energy and is the work of the friction.
so:
=
where M is the mass and V the velocity.
also,
where is the coefficient of kinetic frictio, N is the normal force and d is the distance.
therefore:
also, N is equal to the mass of the hockey puck multiplicated by the gravity.
replacing:
canceling the m:
solving for d:
d = 25.51 m
Answer:
ML2T-2
Explanation:
Work= Force × displacement
=>
work= [MLT^-2] [L]
W= [ML2T-2]