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lutik1710 [3]
4 years ago
13

A hurdler is 0.535 m from a hurdle when he jumps at 6.82 m/s at a 6.79 degree angle. What is his height when he clears the hurdl

e?(Hint: It is not necessarily at the highest point in his motion.) Unit = m. Would love an explanation for this physics problem!
Engineering
1 answer:
butalik [34]4 years ago
3 0

Answer:

0.82 m

Explanation:

have a good day

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Assuming the transition to turbulence for flow over a flat plate happens at a Reynolds number of 5x105, determine the following
torisob [31]

Given:

Assuming the transition to turbulence for flow over a flat plate happens at a Reynolds number of 5x105, determine the following for air at 300 K and engine oil at 380 K. Assume the free stream velocity is 3 m/s.

To Find:

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b. Expressions for the momentum and thermal boundary layer thicknesses as a function of x for a laminar boundary layer

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Calculation:

The transition from the lamina to turbulent begins when the critical Reynolds

number reaches 5\times 10^5

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(b).\; \text{For the lamina boundary layer momentum boundary layer thickness is given by}:\\\frac{\delta}{x} =\frac{5}{\sqrt{R_e}}\;\;\;\;\quad\text{for}\; R_e(c). \frac{\delta}{\delta_t}={P_r}^{\frac{r}{3}}\\\text{For air} \;P_r \;\text{equivalent 1 hence both momentum and heat dissipate with the same rate for oil}\; \\P_r >>1 \text{heat diffuse very slowly}\\\text{So heat transfer rate will be high for air.}\\\text{Convective heat transfer coefficient will be high for engine oil.}

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3 years ago
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Explanation:

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Answer:

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Explanation:

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Answer:

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Explanation:

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Answer:

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Explanation:

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