3 years ago

A nail that is rectangular in cross section and has a blunt point is called a

Engineering

1 answer:

Travka [436]3 years ago

6 0

Answer:

A nail that is rectangular in cross section and has a blunt point is called a Cut nail.

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Answer:

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Explanation:

clothes iron its 3rd

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A 2-m^3 rigid tank contains nitrogen gas at 500kPa and 300K. Now the gas is compressed isothermally to a volume of 0.1 m. The wo

stira [4]

Answer:

(d) 2996 kJ

Explanation:

We have given initial volume $v_1=2m^3$

initial pressure $p_1=500\ kPa$

initial temperature $T_1=300\ K$

we know that during isothermal process the work done is given by

$W=p_1v_1ln\frac{v_2}{v_1}$

where $v_2= final\ volume =0.1m^3\ given$

putting all these value in formula of work done

$W=500\times 2\times ln\frac{0.1}{2}$

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so wok done =2995.8 kJ

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3 years ago

You have the assignment of designing color codes for different parts. Three colors are used on each part, but a combination of t

Masja [62]

Answer:

7 available

Explanation:

Since 3 colors are available r = 3

Total combination = 35

nCr = 35 ---1

nCr = n!/(n-r)!r!---2

We put equation 1 and 2 together

n-1)(n-2)(n-3)!/n-3)! = 35x 3!

We cancel out (n-3)!

(n-1)(n-2) = 210

7x6x5 = 210

nC3 = 35

7C3 = 35

So If there are 35 combinations, 7 colors are available.

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