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andrey2020 [161]
3 years ago
11

Which is not a correct way to measure wavelength?

Physics
2 answers:
Monica [59]3 years ago
7 0

from rarefaction to rarefaction for a longitudinal wave
Simora [160]3 years ago
6 0
Rarefaction is the correct way
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5800

Explanation:

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hi

please help me. ineed answers

Gerund/Infinitive

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3 0
1 year ago
4) A cannon shoots a cannonball of mass 5kg vertically upward from the mouth of a cannon with muzzle velocity of 7 m/s. At a hei
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Answer:

h =220 m

Explanation:

Given that

u = 7 m/s

Even mass will attach but this will not produce any effect on the maximum height of the ball.Because in energy conservation the effect of mass does not present.

So the final speed of the ball will be zero at the maximum height.

v² = u² - 2 g (25 + h)

0 = 7² - 2 x 10 (25 +h)

49 = 20 ( 25 +h)

49 = 500 +20 h

Here h comes out negative that is why we are taking the 70 m/s in place of 7 m/s.

0 = 70² - 2 x 10 (25 +h)         ( take g =10 m/s²)

4900 = 20 ( 25 +h)

4900 = 500 +20 h

4900- 500 = 20 h

4400 = 20 h

440 = 2 h

h =220 m

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