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Ganezh [65]
3 years ago
5

Explain how a projectile might be modified to decrease the air resistance impacting its trajectory.

Physics
1 answer:
Vitek1552 [10]3 years ago
5 0

Answer:

Explanation:

Explain how a projectile might be modified to decrease the air resistance impacting its trajectory.

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When a particular hanging mass is suspended from the string, a standing wave with two segments is formed. When the weight is red
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Solution :

Mass is varied keeping frequency constant.

Wavelength, λ  $=\frac{2l}{n}$

where length of spring = l

           number of segments = n

Velocity, v = λ x f

                 = $\sqrt{\frac{T}{\mu}}$

$\mu $ =  mass density, T = tension in string

$T=\frac{4 \mu l^2f^2}{n^2}$

$T=mg = \frac{4 \mu l^2f^2}{n^2}$  , n = 2

$T = (m-2.2)g = \frac{4 \mu l^2f^2}{n^2}, n = 5$

$\Rightarrow \frac{m}{m-2.2}=\frac{25}{4}$

$\Rightarrow m = 2.619\ kg$

Therefore, μ = 0.002785 kg/ m

Frequency is varied keeping T constant

$T=\frac{4 \mu l^2f^2}{n^2}, f=60 , \ \  n = 2$

$T=\frac{4 \mu l^2f^2}{n^2}, f=? , \ \  n = 7$

$\Rightarrow \frac{60^2}{4}=\frac{f^2}{49}$

f = 210 Hz

8 0
3 years ago
what are two properties that lead to electromagnetic interactions? pls help I'm so confused and cant find the answer anywhere!!
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Answer:

Electric charge. A fundamental property that leads to the electromagnetic interactions among particles that make up matter.

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1) if you could eliminate one item from your diet to improve your heath, what would it be?
Makovka662 [10]

Answer:

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Explanation:

Because I can't control eating lots of rice

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What horizontal velocity should be given to a ball hanging on a 4.9 m long thread so that it slides to the height of the hanger
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Answer:

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