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stich3 [128]
3 years ago
8

Why do small bells have a high pitch

Physics
1 answer:
erma4kov [3.2K]3 years ago
8 0
Small objects vibrate quickly and produce lots of waves each second, and as the length of the bells are short the wave length become short too,so small bells have a high frequency hence high pitch.
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A car has an initial velocity of +30.0 m/s and undergoes an acceleration of -5.00 m/s squared for 5.00 seconds what is the displ
Leni [432]
Ok so the formula is d=vi(t)+½at² and when you substitute it you should get 172.5meters
4 0
3 years ago
Which of the following statements about sidewall markings is correct? a. The load index is given as a letter. b. The traction an
vagabundo [1.1K]

Answer: all the above options are correct.

Explanation:

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3 years ago
Apparent magnitude depends mainly upon _________. our sun has a large apparent magnitude.
Ksenya-84 [330]
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3 years ago
A cannon, positioned on a hill, shoots a cannonball horizontally at 23 m/s. The cannonball hits the stone wall 1.96 m below the
irina [24]

Answer: 14. 49 m

Explanation:

We can solve this problem with the following equations:

x=V_{o} cos \theta t (1)

y-y_{o}=V_{o} sin \theta t-\frac{1}{2}gt^{2} (2)

Where:

x is the horizontal distance between the cannon and the ball

V_{o}=23 m/s is the cannonball initial velocity

\theta=0\° since the cannonball was shoot horizontally

t is the time

y=0 is the final height of the cannonball

y_{o}=1.96 m is the initial height of the cannonball

g=9.8 m/s^{2} is the acceleration due gravity

Isolating t from (2):

t=\sqrt{-\frac{2(y-y_{o})}{g}} (3)

t=\sqrt{-\frac{2(0 m-1.96 m)}{9.8 m/s^{2}}} (4)

t=0.63 s (5)

Substituting (5) in (1):

x=(23 m/s) cos(0\°) 0.63 s (6)

Finally:

x=14.49 m

5 0
2 years ago
What type a medium is a ocean wave
andre [41]
Ocean waves travel through the medium called
"ocean water" or "salt water" or simply "water".
8 0
3 years ago
Read 2 more answers
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