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abruzzese [7]
3 years ago
10

En las próximas semanas estará por realizarse la elección del nuevo comité de padres de familia el cual estará integrado por un

presidente, secretario y un tesorero, se tienen contemplados 9 miembros de la junta de padres de familia para conformar tal comité. ¿De cuantas formas posibles se puede formar el nuevo comité de padres de familia?
Engineering
1 answer:
Nadya [2.5K]3 years ago
3 0

Answer:

si

Explanation:

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Fast plz-The mirror check may involve ______________.
barxatty [35]

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Realigning the mirror

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mirrors should be aligned to minimize blind spots, not look at the tires.

6 0
3 years ago
People with skills and training in areas such as marketing or accounting are an important part of the manufacturing industry.
adelina 88 [10]

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true

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8 0
2 years ago
The maximum voltage in a cooling system should not exceed ______ volts.
Natali [406]

Answer:2%

When the voltages between the three phases are not equal, the current increases dramatically in the motor winding's, and if allowed to continue, the motor will be damaged.

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2 years ago
Horizontal shear forces and, consequently, horizontal shear stresses are caused in a flexural member at those locations where th
jek_recluse [69]

Answer:

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5 0
3 years ago
a cubical box 20-cm on a side is contructed from 1.2 cm thick concrete panels. A 100-W light bulb is sealed inside the box. What
Flura [38]

Answer:

Temperature on the inside ofthe box

Explanation:

The power of the light bulb is the rate of heat conduction of the bulb, dq/dt = 100 W

The thickness of the wall, L = 1.2 cm = 0.012m

Length of the cube's side, x = 20cm = 0.2 m

The area of the cubical box, A = 6x²

A = 6 * 0.2² = 6 * 0.04

A = 0.24 m²

Temperature of the surrounding, T_0 = 20^0 C = 273 + 20 = 293 K

Temperature of the inside of the box, T_{in} = ?

Coefficient of thermal conductivity, k = 0.8 W/m-K

The formula for the rate of heat conduction is given by:

dq/dt = \frac{kA(T_{in} - T_0)}{L} \\\\100 = \frac{0.8*0.24(T_{in} - 293)}{0.012}\\\\T_{in} - 293 = \frac{100 * 0.012}{0.8*0.24} \\\\T_{in} - 293 = 6.25\\\\T_{in} = 293 + 6.25\\\\T_{in} = 299.25 K\\\\T_{in} = 299.25 - 273\\\\T_{in} = 26.25^0 C

5 0
4 years ago
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