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cupoosta [38]
2 years ago
6

Higher frequency electromagnetic waves have ?

Physics
1 answer:
Sergeeva-Olga [200]2 years ago
3 0
High frequency for the range of radio frequency electronmagnetic waves between 3 and 30 megahertz (MHz)
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3 years ago
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An alternator provides 20 A of peak current at 100 V peak AC to a resistive electric heater. How much heating power is delivered
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-- The resistance of the heater is (volts/current) = 5 ohms

-- The heating (RMS) value of a sinusoidal AC is V(peak)/√2 .  For this particular alternator, V(peak)=100V, so the heating (RMS) equivalent is 70.71 V.

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2 years ago
A flea walking along a ruler moves from the 45 cm mark to the 27 cm mark. It does this in 3 seconds. What is the speed? What is
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