2 years ago

Question 1 of 10

Physics

2 answers:

ahrayia [7]2 years ago

7 0

Answer:

its c

Explanation:i am big brain give me brainilest

klasskru [66]2 years ago

4 0

Answer:

Explanation:

The answer is A because when you put a magnet on something That can attract magnetic waves such as iron, etc. the magnet would attract to it. as well as super conductors do not insulate magnetic fields, so C is out

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taurus [48]

The radio waves are electromagnetic wave, so it travels with velocity of light i.e $3\times 10^{8} \ m/s$ .

We can use the relation between frequency, wavelength and speed as

$\lambda =\frac{c}{f}$

Here c is speed of light, $\lambda$ is wavelength and f is frequency and its value is given 99.90 FM, it is actually in megahertz (i.e 99.90 MHz).

Therefore,

$\lambda =\frac{3 \times 10^{8}\ m/s }{99.90 \times 10^{6} \ Hz} = 3.003 \ m$ .

Thus, the broadcast wavelength of the given radio station is 3.003 m.

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Marianna [84]

Answer:

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Explanation:

Refer to the attachment.

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2 years ago

Two beams of coherent light are shining on the same piece of white paper. with respect to the crests and troughs of such waves,

defon

Answer:

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Crests and troughs are 180 deg out of phase and when they have their maxima at the same time and place, their net contribution will be zero"

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2 years ago

A bag of rocks has a mass of 16.4 kg what is it weight here on the earth

Alex73 [517]

Answer
160,72N
Explanation
W=mg
=(16.4)(9.8)

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