Joan makes the device shown in her science class. What would happen to the magnetic field if she connects the battery in the opp
2 answers:
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Answer:
Explanation:
Check the attachment for solution
Object true weight is given as
now we know that g = 9.8 m/s^2
now when it is complete submerged in water its apparent weight is given as 82 N
apparent weight = weight - buoyancy force
apparent weight = 82 N
weight = 123 N
now we have
82 = 123 - buoyancy force
buoyancy force = 123 - 82 = 41 N
now we also know that buoyancy force is given as
now as we know that mass of the object is 12.55 kg
its volume is 4.18 * 10^-3 m^3
now we know that density will be given as mass per unit volume
so here density of object is 3002.4 kg/m^3