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3 years ago

8

AM radio frequencies range between 550 kHz (kilohertz) and 1600 kHz and travel at the same speed, 3.0 x 108 m/s. What is the wav

elengths of the 1600 kHz frequency?

2 answers:

LenaWriter [7]3 years ago

4 0

Answer:187500m

Explanation:

frequency=1600kHz

Velocity=3x10^8 m/s

Wavelength=velocity ➗ frequency

Wavelength=(3x10^8) ➗ 1600

Wavelength=187500m

Alik [6]3 years ago

4 0

Ohhhhhhhhhhhhhhhhhhhhhhh

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2 years ago

Near the surface of Earth an electric field points radially downward and has a magnitude of approximately 100 N/C. What charge (

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$q=2.997\times 10^{-4}$ C

Sign-Negative

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We are given that

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Acceleration= $0.19 ms^{-2}$ (Upward)

Mass of charge=3 g= $3\times 10^{-3}$ kg

1kg=1000g

We have to find the magnitude and sign of charge would have to be placed on a penny .

By newton's second law

$\sum F_y=ma$

$\sum F_y=qE-mg$

Substitute the values then we get

$qE-mg=ma$

Substitute the values then we get

$q(100)-3\times 10^{-3}(9.8)=3\times 10^{-3}(0.19)$

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