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yuradex [85]
3 years ago
12

What is the acceleration at 3 seconds? Please explain your answer. Thank you :]

Physics
1 answer:
statuscvo [17]3 years ago
8 0

Answer:

-3 m/s^{2}

Explanation:

Acceleration on a VT graph is the slope of the line at the given point. We can find the slope at 3 with Δy/Δx. This gives us (4-2)/(3-(-3)) which works out to be -3m/s^2

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A light has wavelength of is used in the double slits experiment . Which of the following values represent the phase difference
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A steel pipe of 12-in. outer diameter is fabricated from 1 4 -in.-thick plate by welding along a helix that forms an angle of 25
Varvara68 [4.7K]

Answer:

Normal stress = 66/62.84 = 1.05kips/in²

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Explanation:

A steel pipe of 12-in. outer diameter  d₂ =12in  d₁= 12 -4in = 8in

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angle of 25°

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determine the normal and shearing stresses

Normal stress б = force/area = P/A

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Tangential stress T = force* cos ∅/area = P/A

           = 66* cos 25/ (П* (d₂²-d₁²)/4

           =59.82/ (3.142* (12²-8²)/4

          = 59.82/62.84 = 0.952kips/in²

shearing stress  = tangential stress /2

                           = T/2 = 0.952/2 = 0.476 kips/in²

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Homogous chromosomes separate during.....?
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