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2 years ago

9

2.44mW of incident 520 nm light is directed through a1 cm sample cuvette and 0.68 mW of Plight exits the sample what is the abso

rbance of the sample?

1 answer:

Flura [38]2 years ago

7 0

Answer:

?/?

Explanation:??

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Instrument panel help please

nirvana33 [79]

Answer:

A. 4WD Low

B. 4WD High

C. Safety belt

D. Check gauge

E. Oil temperature gauge

F. Left turn indicator

G. Tachometer

H. High beams

I. Speedometer

J. Right turn indicator

K. Battery voltage gauge

L. Cruise control light

M. (can't see sorry)

N. Service engine soon

O. Battery warning light

P. Airbag indicator

Q. Anti-lock brake system

R. Fuel gauge

S. Parking brake (AKA emergency brake) on

T. Low windshield washer fluid

U. Check fuel cap

V. Door ajar/open

W. Shift indicator

X. Trip odometer reset

Y. Oil pressure gauge

Z. compass/cardinal direction indicator

AA. Odometer?

4 0

2 years ago

Calculate the diameter of pneumatic cylinder to drive a mechanism. The force exerted by the mechanism is 80 N. The return force

sashaice [31]

Answer:

14.27 mm

Explanation:

Force = 80 Newton

Pressure exerted = 5 bar = 5×10⁵ Pa

Pressure exerted = Force/Area

Area = Force/Pressure

$Area=\frac{80}{500000}\\\Rightarrow Area=0.00016\ m^2$

Area of the cylinder=πd²/4

$\Rightarrow \frac{\pi}{4}d^2=0.00016\\\Rightarrow d^2=\frac{4\times 0.00016}{\pi}\\\Rightarrow d^2=0.0002037\\\Rightarrow d=0.01427\ m$

Hence diameter of cylinder 14.27 mm

5 0

2 years ago

Certification programs include a course on NIMS to ensure firefighters can

Orlov [11]

Answer:

C.) determine the heat of a fire.

Explanation:

NIMS certifies individual skills against the national standards. The NIMS credentialing program requires that the candidate meet both performance and theory requirements. Both the performance and knowledge examinations are industry-designed and industry-piloted. There are 52 distinct NIMS skill certifications.

8 0

3 years ago

Oil in an engine is being cooled by air in a cross-flow heat exchanger, where both fluids are unmixed. Oil (cp = 2000 J/kg. K) f

romanna [79]

Answer:

A) $\epsilon = 0.67122$

B) $T_{h, out} = 44.795\ degree\ C$

Explanation:

Heat capacity of oil $C_h =m_h C_{ph} = 0.02 \times 2 = 0.04$ Kw/K

Heat capacity of air $C_C = m_C C_{pc} = 0.2 \times 1 = 0.2$ Kw/K

therefore $C_{min = C_h$

and $C_{max} = C_C$

we know that capacity ratio is

$c = \frac{C_{min}}{C_{max}} = 0.2$

$NTU = \frac{U A_s}{DC_{min}} = \frac{0.05 \times 1}{0.04} 1.25$

effectiveness is given as

$\epsilon = 1 -e^{\frac{NTU^0.22}{c} [ exp (-cNTU^{0.78}) -1]}$

$\epsilon = 1 -e^{\frac{1.25^0.22}{0.2} [ exp (-0.2\times 1.25^{0.78}) -1]}$

$\epsilon = 0.67122$

we knwo that actual heat Q is given

$Q = \epsilon \times Q_{max}$

$Q_H = \epsilon \times Q_{max}$

$Q_H = C_h (T_{h, in} -T_{h, out})$

$Q_H = \epsilon C_{min} (T_{h, in} - T_{c, in})$

$T_{h, out} = T_{h, in} - \epsilon (T_{h, in} - T_{c, in})$

$T_{h, out} = 75 - 0.67122(72 - 30)$

$T_{h, out} = 44.795\ degree\ C$

6 0

3 years ago

10. Which one of the following items would you expect to find on a floor framing plan?

yawa3891 [41]

Answer:

c

Explanation:

the pluming usually is on the bottom floor plan

5 0

2 years ago

Read 2 more answers