Answer:
Electromagnetic cranes are used to separate copper from iron in a scrap yard. The current is switched on to energies the electromagnet and pick up the iron pieces from the scrap. Then these iron pieces are moved to another position, the electromagnet in switched off and the iron pieces are released.
Explanation:
Salt water is not an example of suspension as salt dissolves in water and combines with it rather than float in the water.
When people aboard a plane...the amount of baggage you take has to vary because the plane has a certain carrying capacity.
F=ma
Therefore the net force = 1000kg × 2 metres per second per second
So F=2000 N
Distance = speed / time
speed = 95 m/s
time = 3 s
distance = 95 / 3 m
displacement = 95/3 m or 32 m (2 s.f.)
