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BlackZzzverrR [31]

3 years ago

14

This part of the electromagnet spectrum produces heat and with special equipment can locate people at night.

2 answers:

Elza [17]3 years ago

7 0

Answer: A

Explanation:

velikii [3]3 years ago

6 0

I am pretty sure that infrared waves are part of the electromagnet spectrum produces heat and with special equipment can locate people at night. I choose this options because <span>gamma rays can be harmful to people, and other options just make no sense.</span>

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An ac series circuit has an impedance of 60 Ohm and

Iteru [2.4K]

Answer:

Power factor of the AC series circuit is $cos\phi=0.5$

Explanation:

It is given that,

Impedance of the AC series circuit, Z = 60 ohms

Resistance of the AC series circuit, R = 30 ohms

We need to find the power factor of the circuit. It is given by :

$cos\phi=\dfrac{R}{Z}$

$cos\phi=\dfrac{30}{60}$

$cos\phi=\dfrac{1}{2}$

$cos\phi=0.5$

So, the power factor of the ac series circuit is $cos\phi=0.5$ . Hence, this is the required solution.

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vampirchik [111]

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A punted football hits the ground with a force of 50 N . According to Newton’s 3rd law of motion what also happens at the same e

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