4 years ago

How many layers of data can a DVD store? 3 2 4 1 1

Physics

1 answer:

dybincka [34]4 years ago

7 0

Answer:

Capacidad de almacenamiento ofrecida por los DVD

Hay que mencionar que es posible conseguir DVD de una o dos capas. Los DVD que cuentan con una capa son capaces de almacenar aproximadamente 4.7GB de datos, mientras que los de doble capa ofrecen la posibilidad de almacenar alrededor de 8.5GB

Explanation:

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in the 1950s an experimental train that had a mass of 33200kg was powered across a level track by a jet that produced a thrust o

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248482000 force*dist=work

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3 years ago

A 10-cm-thick aluminum plate (α = 97.1 × 10−6 m2/s) is being heated in liquid with temperature of 475°C. The aluminum plate has

Anuta_ua [19.1K]

Answer:

$T_0 = 338.916 Degree\ celcius$

Explanation:

Given data:

Thickness of aluminium sheet 10 cm

initial temperature = 25 degree celcius

Assumption

Thermal properties remain constant, transfer of heat by radiation is negligible.

from the information given in the question we have

T_S ≈T_∞ , it implies we have h → ∞

from table 4.2 Biot number → ∞ the value of

$\lambda_1 = 1.5708 and A_1= 1.2732$

The fourier number is

$t = \frac{\alpha t}{l^2} = \frac{97.1\times 10^{-6} \times 15}{0.05^2} = 0.5826$

Temperature at center after 15 second of heating

$\theta _{0 wall} = \frac{T_0 - T_{\infity}}{T_i -T_{\infity}} = A_i e^{\lambda_1^2 t}$

$T_0 = T_i -T_{\infity} \times A_i e^{\lambda_1^2 t}$

$T_0 = (25 - 475) 1.2732 e^{-1.5708^2 \times 0.5826} + 475 = 356 degree celcius$

$T_0 = 338.916 Degree\ celcius$

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3 years ago

Does the coefficient of kinetic friction depend on speed?

kolbaska11 [484]

It depends on speed because it is a part of a car

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3 years ago

What occurs when human muscle is forced to make ATP without oxygen

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Lactic acid fermentation. hope this helps :)

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4 years ago

Read 2 more answers

What is the voltage at resistor #3? (must include unit - V)

Romashka-Z-Leto [24]

Explanation:

I = 120/30=2A

Voltage across R3= current × resistance

= 2A × 15 ohm = 30 volt

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3 years ago