Physics
Safety fuse wire used in domestic electrical appliances is made of metal of low

Resistance
Melting point
Specific gravity
Conductance

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Physics
Should cars have bumpers that collapse under impact?

Yes, since they help to absorb the impact of a collision and keep the occupants safe
No, since the colliding car would then ram into the occupants and kill them
Yes, since the offending car should get damaged and pay for the mistake
No, since it would be very expensive to get the car repaired

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