As you have learned, not all motor oils are the same. What are two things that make them different?.

The head difference between the inlet and outlet of a 1km long pipe discharging 0.1 m^3/s of water is 0.53 m. If the diameter is

Reptile [31]

Answer:

The correct option is 'e': f = 0.05.

Explanation:

The head loss as given by Darcy Weisbach Equation is as

$h_{l}=\frac{flv^{2}}{2gD}$

where

$h_{l}$ is head loss in the pipe

'f' is the friction factor

'l' is the length of pile

'v' is the velocity of flow in pipe

'D' is diameter of pipe

From equation of contuinity we have $v=\frac{Q}{A}$

Thus using this in darcy's equation we get

$h_{l}=\frac{flQ^{2}}{2gDA}$

where

'Q' is discharge in the pipe

'A' is area of the pipe $A=\frac{\piD^2}{4}$

Applying the given values we get

$h_{l}=\frac{8flQ^{2}}{\pi ^{2}gD^{5}}$

Solving for 'f' we get

$f=\frac{0.53\times \pi ^{2}\times 9.81\times 0.6^{5}}{1000\times 0.1^{2}\times 8}\\\\f=0.05$

7 0

3 years ago

How many points do you need to define for the rectangle

Rudik [331]

Answer:

Two points

Explanation:

3 0

3 years ago

dentify a semiconducting material and provide the value of its band gap) that could be used in: (a) (1 point) red LED (b) (1 poi

OLga [1]

Answer:

(a) Aluminum Indium Gallium Phosphide (AlInGaP). Band gap = 1.81eV ≈ 2eV

(b) Gallium Nitride (GaN). Band Gap = 3.4eV

(c) Aluminium Gallium Arsenide (AlGaA). Band Gap = 1.42eV ≈ 2.16eV

(d) Zinc Selenide (ZnSe). Band Gap = 2.82eV

(e) Gallium Phosphide (GaP). Band Gap = 2.24eV

Explanation:

LED's are semi-conducting materials that convert electrical energy to light energy. The light color emitted from the LED depends on the semi-conducting material and other compositions.

The band gap of the semi-conductor determines its wavelength. High band gap semi-conductors emit lower wavelengths which means greater power(UV semi-conducting macterials fall under this category).

5 0

3 years ago

Andy has applied for a NICET certification for an engineering technologist. How many years engineering technology degree must he

MAXImum [283]

Answer:

Four (4) years.

Explanation:

NICET is an acronym for National Institute for Certification in Engineering Technologies and it is an organization that issues a nationally recognized certification to qualified engineering technologists and technicians in the United States of America. NICET is a non-profit organization that was founded in 1961.

According to NICET, the minimum requirement for a technologist certification is a four (4) year engineering technology degree from an accredited or reputable institution of learning (college or university).

In this scenario, Andy has applied for a NICET certification for an engineering technologist. Andy must hold an engineering degree of four (4) years to be eligible for the certification.

6 0

3 years ago

4. When the ESC system senses oversteer,

bagirrra123 [75]

I’m pretty sure the answer is b I’m not 100% but I think

5 0

2 years ago