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diamong [38]
3 years ago
11

What is v^2=0.05-4.9 please i need this asap​

Physics
1 answer:
Margaret [11]3 years ago
7 0

Answer:

v =2.02

Explanation:

v^2=0.05-4.9

v^2=-4.85

square root both side

v=2.02

^^^^this is a not a perfect square  

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To practice Problem-Solving Strategy 15.1 Mechanical Waves. Waves on a string are described by the following general equation y(
DerKrebs [107]

Answer:

0.0549 m

Explanation:

Given that

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speed  v = 8.5 m/s

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v = angular frequency / wave number

and

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wave number =  2 * 3.142 / 0.5

wave number = 12.568

angular frequency = v k

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angular frequency = 106.828 rad/sec ~= 107 rad/sec

so

equation y(x,t)=Acos(kx−ωt)

y(x,t)= 5.5*10^−2 cos(12.568 x−107t)

when x =0 and and t = 0

maximum y(x,t)= 5.5*10^−2 cos(12.568 (0) − 107 (0))

maximum y(x,t)= 5.5*10^−2  m

and when x =  x = 1.52 m and t = 0.150 s

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y(x,t)= 5.5*10^−2 × (0.9986)

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5 0
3 years ago
Help me with this question Please
zysi [14]

Answer:

W has the lowest density and Y has the greatest density

Explanation:

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From these we can find the answer......

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3 years ago
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Answer:

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3 0
3 years ago
After coming down a slope, a 60-kg skier is coasting northward on a level, snowy surface at a constant 15 m>s. Her 5.0-kg cat
Vinil7 [7]

To solve this exercise, it is necessary to apply the concepts of conservation of the moment especially in objects that experience an inelastic colposition.

They are expressed as,

m_1v_1+m_2v_2 = (m_1+m_2)v_f

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m_1= mass of the skier

m_2= mass of the cat

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V_f = \frac{m_1v_1+m_2v_2}{(m_1+m_2)}

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3 years ago
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Irina-Kira [14]

Answer:

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Explanation:

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