A student separated a mixture of sulfur and iron using a magnet. Then, the student drew a model of what happened at the molecular level. Which model represents what happened when sulfur and iron were separated?

ОА.

OD

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ОЕ.

Oc.

od

Explanation:

im really not sure mate

c)as speed changes, wavelength and frequency change.

everything changes!

answer: 2×10^-2kg

explanation: density= mass per volume

vol=mass/density

converting to s.i units we have;

3÷1000kg = 0.003

1.5÷100m = 0.15

0.003/0.15 = 0.02kg