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3 years ago

The loudness of a sound is determined by the __________, or height, of the sound wave.

Physics

2 answers:

Fittoniya [83]3 years ago

6 0

just took the quiz

balandron [24]3 years ago

5 0

C. amplitude....................

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When red-headed woodpeckers (melanerpes erythrocephalus) strike the trunk of a tree, they can experience an acceleration ten tim

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98.1 m/s² × (1 in)/(0.0254 m) ≈ 3862 in/s²

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3 years ago

A source charge of 5.0 µC generates an electric field of 3.93 × 105 at the location of a test charge. How far is the test charge

kap26 [50]

Answer:

B. ) 0.34 m

I definitely guessed and got the right answer so :))

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3 years ago

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In Example 2.12, two circus performers rehearse a trick in which a ball and a dart collide. Horatio stands on a platform 6.4 m a

pickupchik [31]

Answer:

time of collision is

t = 0.395 s

$h = 5.63 m$

so they will collide at height of 5.63 m from ground

Explanation:

initial speed of the ball when it is dropped down is

$v_1 = 0$

similarly initial speed of the object which is projected by spring is given as

$v_2 = 16.2 m/s$

now relative velocity of object with respect to ball

$v_r = 16.2 m/s$

now since we know that both are moving under gravity so their relative acceleration is ZERO and the relative distance between them is 6.4 m

$d = v_r t$

$6.4 = 16.2 t$

$t = 0.395 m$

Now the height attained by the object in the same time is given as

$h = v_2 t - \frac{1}{2}gt^2$

$h = 16.2(0.395) - \frac{1}{2}(9.81).395^2$

$h = 5.63 m$

so they will collide at height of 5.63 m from ground

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3 years ago

two children having a disagreement pull on a 50N sled in opposite directions. one pulls with a force of 300N east, the other wit

prohojiy [21]

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3 years ago

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The speed of the ball when it returns to the same horizontal level

stellarik [79]

8.0 m/s if there is no air resistance. (B)

Less if there IS any air resistance.

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3 years ago