3 years ago

Which of these can harm the human ear?

Physics

1 answer:

Lina20 [59]3 years ago

7 0

Answer:

fireworks

Explanation:

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Zigmanuir [339]

Answer:

First.

Find double diffrenciation of all equation
Then put the value of t in the differenciated equations

3 0

3 years ago

A jet airliner moving initially at 504 mph (with respect to the ground) to the east moves into a region where the wind is blowin

adelina 88 [10]

Answer

given,

intial velocity = 504 mph

wind speed = 219 mph

at an angle of 29◦

from the data

The resultant velocity =

$V = V_x \hat{i} + V_y\hat{j}$

$V = (504 + 219 cos 29^0 ) \hat{i} +(219 sin 29^0 )\hat{j}$

$V = 695.54\hat{i} + 106.17 \hat{j}$

the magnitude of velocity

$V = \sqrt{695.54^2+106.17^2}$

V = 703.59 m/s

direction

tan θ = $\dfrac{106.17}{695.54}$

θ = 8.676°

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4 years ago

Standard solar panels transform 3,600,000 J of input light energy into 720,000 J of useful electrical energy. The new solar pane

dangina [55]

Answer:

Explanation:

we divide 3600000J by 720,000J

and after that the answer will be 5

3600,000J

---------------

720,000J

=5answer

7 0

3 years ago

After 60 days, 100g of a certain element has decayed to only 12.5g.

vagabundo [1.1K]

Answer:

8 days

Explanation:

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3 years ago

Conditional waves contain a crest, trough, wavelength, and amplitude<br> True or False?

AveGali [126]

Answer:

True

Explanation:

8 0

3 years ago