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Harlamova29_29 [7]
2 years ago
11

Rocks that fall out of the sky and land on Earth are called _____________. Question 7 options: A.meteorites B.asteroids C.comets

D.meteors
Physics
2 answers:
kenny6666 [7]2 years ago
3 0
They’re called meteorites
julsineya [31]2 years ago
3 0
They’re called meteorites
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When you step on the accelerator to increase the speed of your car, the force that accelerates the car is: A. the force of your
Dmitry [639]

Answer:

B. the force of friction of the road on the tires

Explanation:

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Define 1 kg of mass as international standard​
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3 years ago
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An open organ pipe is 1.6m long. If the speed of sound is 343m/s, what are the pipes: a) fundamental , b) 1st overtone , & c
Yakvenalex [24]

Answer:

a) 107.1875 Hz

b) 214.375 Hz

c) 321.5625 Hz

Explanation:

L = length of the open organ pipe = 1.6 m

v = speed of sound = 343 m/s

f = fundamental frequency

fundamental frequency is given as

f = \frac{v}{2L}

inserting the values

f = \frac{343}{2(1.6)}

f = \frac{343}{2(1.6)}

f = 107.1875 Hz

b)

first overtone is given as

f' = 2f

f' = 2 (107.1875)

f' = 214.375 Hz

c)

first overtone is given as

f'' = 3f

f'' = 3 (107.1875)

f'' = 321.5625 Hz

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3 years ago
What are the characteristics of high energy waves?
Temka [501]
Amplitude and frequency
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15 points for 2 questions
Elden [556K]
I believe the answer would be c because i think that you multiply the 2
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