A ferromagnetic material is subjected to a strong magnetic field and afterward acts as a permanent magnet. Why does this occur?
The magnetic field aligns the magnetic domains mainly in one direction.
The magnetic field gives the ferromagnetic material an electric charge.
Long-range electric currents circulating in the iron make it magnetic.
The motion of the iron nuclei produces a magnetic field.
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What is the power rating of the lightbulb if 3.0 a flow through it when connected to a 15 v battery

The temperature in gavin's oven is a sinusoidal function of time. gavin sets his oven so that it has a maximum temperature of 280°f and a minimum temperature of 240°. once the temperature hits 280°, it takes 20 minutes before it is 280° again. gavin's cake needs to be in the oven for 30 minutes at temperatures at or above 270°. he puts the cake into the oven when it is at 260° and rising. how long will gavin need to leave the cake in the oven? (round your answer to the nearest minute.)

M1 = 2.8 kg, m2 = 6.72 kg, m3 = 11.2 kg, byas in .is ,is .toof m3 it 0.91 m. (in m/s)