3 years ago

Does anyone have cumulative exams today or tomorrow?(There so boring!)

Engineering

2 answers:

AlekseyPX3 years ago

6 0

Answer:

I feel bad for you

Explanation:

They are so overwhelming and boring

IRINA_888 [86]3 years ago

3 0

Answer:

I do!!

Explanation:

I have to sit for 3 hours lol‍♀️

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3 years ago

A car accelerates from O to 60. miles per hour in 5.2 seconds. Calculate acceleration in m/s seconds. Calculate acceleration in

DochEvi [55]

Answer:

$a=5.515\frac{m}{s^{2} }$

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Performing the operations

$60\frac{mile}{h}=\frac{(60*1609.34)}{3600}\frac{m}{s}=26.822\frac{m}{s}$

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$a=\frac{v}{t}$

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3 years ago

Substances A and B have retention times of 16.63 and 17.63 min, respectively, on a 30 cm column. An unretained species passes th

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Answer:

The time required to elute the two species is 53.3727 min

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Given data:

tA = retention time of A=16.63 min

tB=retention time of B=17.63 min

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$Re_{s} =\frac{2(t_{B}-t_{A})}{W_{A}+W_{B} } =\frac{2*(17.63-16.63)}{1.11+1.21} =0.8621$

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$\frac{t_{2}}{t_{1}} =(\frac{Re_{B} }{Re_{s} } )^{2}$

Here

ReB = 1.5

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3 years ago