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taurus [48]
4 years ago
8

18. What processes have caused Earth's surface to change over time?

Physics
2 answers:
Inessa05 [86]4 years ago
6 0
The answer is C. tectonic plate movement and weathering cause it to shift
Alex73 [517]4 years ago
3 0
The answer is C. A and B
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A flea jumps straight up to a maximum height of 0.540 m . what is its initial velocity v0 as it leaves the ground?
jok3333 [9.3K]
For an uniformly accelerated motion, we can write
2ah=v_f^2-v_0^2
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v_0 =  \sqrt{2ah}= \sqrt{2(9.81 m/s^2)(0.540 m)}  =3.25 m/s
3 0
3 years ago
5. A 1.2 m guitar string is under a tension of 888 N. The waves produced on the string (when
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An air-filled pipe is found to have successive harmonics at 945 Hz , 1215 Hz , and 1485 Hz . It is unknown whether harmonics bel
Aleonysh [2.5K]

Answer:

L = 0.635m

Explanation:

This problem involves the concept of stationary waves in pipes. For pipes closed at one end,

The frequency f = nv/4L for n = 1,3,5....n

For pipes open at both ends

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Assuming the pipe is closed at one end and that velocity of sound is 343m/s in air. If we are right we will obtain a whole number for n.

The film solution can be found in the attachment below.

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3 years ago
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