11. Ten bagels is what percentage of a dozen bagels?

nikdorinn [45]

Answer:

Option A

hands-on assembly of the company's product

Explanation:

The managerial roles mainly include supervision of actual work on a higher level and implementation of organization's policy. The hands-on assembly of company's product is majorly done by junior staff who work under a supervisor who reports to the manager. Therefore, this is not a duty of a manager in a manufacturing field.

7 0

3 years ago

What were the trade-offs and opportunity costs of one of Teasha’s economic decisions?

sergij07 [2.7K]

Answer:

Opportunity cost she loses the chance to get the degree. The trade- off is she gets to start a business.

Explanation:

3 0

3 years ago

The following is a correlation for the average Nusselt number for natural convection over spherical surface. As can be seen in t

vovikov84 [41]

Answer:

Explanation:

$r_2=$ ∞

$q=4\pi kT_1(T_2-T_1)\\$

$q=2\pi kD.$ ΔT--------(1)

$q=hA$ ΔT $=4\pi r_1^2(T_2_s-T_1_s)\\$

$N_u=\frac{hD}{k} = 2+\frac{0.589 R_a^\frac{1}{4} }{[1+(\frac{0.046}{p_r}\frac{9}{16} )^\frac{4}{9} } ------(3)$

By equation (1) and (2)

$2\pi kD.$ ΔT=h.4 $\pi r_1^2$ ΔT

$2kD=hD^2\\\frac{hD}{k} =2\\N_u=\frac{hD}{k}=2\\$ -------(4)

From equation (3) and (4)

So for sphere $R_a$ →0

6 0

3 years ago

Show the bias polarities and depletion regions of an npn BJT in the normal active, saturation, and cutoff modes of operation. Dr

Troyanec [42]

Complete Question:

Show the bias polarities and depletion regions of an npn BJT in the normal active, saturation, and cutoff modes of operation. Draw the three sketches one below the other to (qualitatively) reflect the depletion widths for these biases, and the relative emitter, base, and collector doping.

Consider a BJT with a base transport factor of 1.0 and an emitter injection efficiency of 0.5.

Calculate roughly by what factor would doubling the base width of a BJT would increase, decrease, or leave unchanged the emitter injection efficiency and base transport factor? Repeat for the case of emitter doping increased 5 × =. Explain with key equations, and assume other BJT parameters remain unchanged!

Answer & Explanation:

[Find the attachments]

Step 1 :

Emitter and base, collector, and base are forward biased then BJT is in saturation region. Emitter and base is forward biased and base and collector in reverse biased then BJT is in active region.

Emitter and base, collector and base are reverse biased then BJT in cut off region.

Three sketches one below the other is shown in Figure 1.

[find the figure in attachment]

Step 2:

Value of base widths of saturation, active and cut off operated BJT are value of Base width of saturated region operated BJT is less than base width in active region operated BJT. Value of base width of active region operated BJT is less than base width in cut off region operated BJT.

Saturation region operated base width of BJT is < Active region operated base width of BJT is < Cut off region operated base width of BJT.

[For Steps 3 4 5 6 and 7 find attachments]

8 0

4 years ago

Explain working of Laser Doppler Vibrometer with diagram.

Klio2033 [76]

Answer:

A laser-Doppler vibrometer identifies the Doppler effect or shift of laser light reflected from the sample object

Explanation:

A laser-Doppler vibrometer (e.g. Micro Motion Analyzer 400 from Polytec) identifies the Doppler effect or shift of laser light reflected from the sample object .At a beam splitter, a laser beam is partitioned into a measuring beam and a reference beam that deflects 90 ° upwards and transmit to the reference mirror "RM." Both beams come back to the beam splitter.

6 0

3 years ago