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Elina [12.6K]
3 years ago
15

Hi! Can you guys help me on my Re-do test I don’t want to fail. Ten points plus Brainliest if all are correct. Thanks!

Physics
2 answers:
rewona [7]3 years ago
3 0

WARNING !!! i don’t know for sure but i tried my best.

1. False

2. True

3. Yes

4. Yes

5. Yes

Nataly_w [17]3 years ago
3 0
1 false
2true
3yes
4tes
5yes
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Which type of wave has a longer wavelength: AM radio waves (with frequencies in the kilohertz range) or FM radio waves (with fre
faltersainse [42]

Answer:

AM has longer wavelength

Explanation:

The relation between the wavelength and teh frequency is given by

v = f x λ

Where, f is the frequency and λ be the wavelength.

It shows that the wavelength is inversely proportional to the frequency.

So, higher the frequency, smaller be the wavelength.

So, FM has high frequency than AM, thus, FM has lower wavelength as compared to AM.

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3 years ago
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3 years ago
What is the average speed of a plane that flies 7,200 km in 9 hours?
Mnenie [13.5K]
First of all, the formula for speed is;
Speed=distance/time
From the question, you have;
distance=7,200km
Time=9 hours
So that will be;
Speed=7200/9
When divided, you will have;
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The unit for speed is km/hr or m/s. So that will be;
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