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mash [69]
3 years ago
8

Which of the following is correctly describes a radio wave

Physics
2 answers:
Zigmanuir [339]3 years ago
3 0
AM radio has longer wavelength and lower frequency. "Short-wave" radio has shorter WL and higher FQ. Police walkie talkies have even shorter and higher. FM radio has even shorter and higher. Aircraft communication has even shorter and higher. TV has even shorter and higher. Cellular telephone has even shorter and higher. The radio waves is a microwave oven have even shorter and higher. Satellite TV signals into the dish on the garage have even shorter and higher.
stiv31 [10]3 years ago
3 0
Short and high 
long and low
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Does energy or matter ever disappear? Explain.
maria [59]

Answer:

The first law of thermodynamics doesn't actually specify that matter can neither be created nor destroyed, but instead that the total amount of energy in a closed system cannot be created nor destroyed (though it can be changed from one form to another).

Explanation:

3 0
3 years ago
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A bowling ball with a mass of 8 kg is moving at a speed of 5 m/s. What is its<br> kinetic energy?
natali 33 [55]

Answer:

100J

Explanation:

Kinetic energy=1/2mv^2

Kinetic energy=(1/2 x 8)x5^2

Kinetic energy=4x25

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100J

5 0
3 years ago
Which objects would sink in honey, which has a density of 1.4 g/cm³? Check all that apply.
bazaltina [42]

Answer:

any object that has density more than 1.4

Explanation:

The object that has density more than 1.4 is denser than the honey

6 0
3 years ago
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A mass on a spring vibrates in simple harmonic motion at an amplitude of 8.0 cm. If the mass of the object is 0.20 kg and the sp
Dmitry [639]

Answer:

Frequency, f = 3.73Hz

Explanation:

The frequency of a simple harmonic 6is given by:

f = w/2pi

But w= Sqrt( k/m)

Where k is the spring constant

And m is the mass

Given:

Mass=0.20kg

Spring constant, k=130N/m

w= Sqrt(130/0.20)

w= Sqrt(650)

w= 25.50 m

Frequency, f = w/2pi

f = 25.50/(2×3.142)

f = 3.73Hz

5 0
3 years ago
Practice
stiv31 [10]

Answer:

The answer is Letter B The car travel at a constant veloc

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3 years ago
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