Answer:
1) The plane of the loop is perpendicular to the magnetic field.
2) The magnetic flux is independent of the orientation of the loop.p
Explanation:
The flux is calculated as φ=BAcosθ. The flux is therefore the highest when the magnetic field vector is perpendicular to the plane of the loop We can also deduce that the flux is zero when there is no magnetic field part perpendicular to the loop When the angle reaches zero, the flux is in the limit because when the angle becomes zero, the cos is the maximum.
Friction-reducing technologies used in the Variable Compression Turbo Engine are Diamond-like coating on valve lifters, micro finishing on crankshaft and camshaft and mirror bore coating on cylinder wall.
<u>Explanation:</u>
Variable compression is a technology to adjust the compression of an internal combustion engine while the engine is in operation. At this time friction may occur that need to be reduced. To reduce this friction some technologies are used like
- Diamond-like coating on valve lifters
- Micro finishing on crankshaft and camshaft
- Mirror bore coating on cylinder wall
A hydrogen free diamond like carbon coating is applied to an engine valve lifter to reduce mechanical loss. Micro finishing on crankshaft and camshaft achieves improvement in geometric parameters such as roundness. Mirror bore coating on cylinder wall raises energy efficiency by reducing the friction inside the engine.
Answer:
Moc = -613.25 [lb*in]
Explanation:
Este problema se puede resolver mediante la mecánica vectorial, es decir se realizara un analisis de vectores.
Primero se calculara el momento de la fuerza F_AB con respecto al punto O, debemos recordar que el momento con respecto a un punto se define como el producto cruz de la distancia por la fuerza.
(producto cruz)
Necesitamos identificar los puntos:
O (0,0,0) [in]
A (12,0,0) [in]
B (0, 24,8) [in]
C (12,24,0) [in]
![r_{A/O}=(12,0,0) - (0,0,0)\\r_{A/O} = 12 i + 0j+0k [in]\\AB = (0,24,8) - (12,0,0)\\AB = -12i+24j+8k [in]\\[LAB]=\frac{-12i+24j+8k}{\sqrt{(12)^{2} +(24)^{2} +(8)^{2} } }\\ LAB=-\frac{3}{7} i+\frac{6}{7}j+\frac{2}{7}k](https://tex.z-dn.net/?f=r_%7BA%2FO%7D%3D%2812%2C0%2C0%29%20-%20%280%2C0%2C0%29%5C%5Cr_%7BA%2FO%7D%20%3D%2012%20i%20%2B%200j%2B0k%20%5Bin%5D%5C%5CAB%20%3D%20%280%2C24%2C8%29%20-%20%2812%2C0%2C0%29%5C%5CAB%20%3D%20-12i%2B24j%2B8k%20%5Bin%5D%5C%5C%5BLAB%5D%3D%5Cfrac%7B-12i%2B24j%2B8k%7D%7B%5Csqrt%7B%2812%29%5E%7B2%7D%20%2B%2824%29%5E%7B2%7D%20%2B%288%29%5E%7B2%7D%20%7D%20%7D%5C%5C%20LAB%3D-%5Cfrac%7B3%7D%7B7%7D%20i%2B%5Cfrac%7B6%7D%7B7%7Dj%2B%5Cfrac%7B2%7D%7B7%7Dk)
El ultimo vector calculado corresponde al vector unitario (magnitud = 1) de AB. El vector fuerza corresponderá al producto del vector unitario por la magnitud de la fuerza = 200 [lb].
![F_{AB}=-\frac{600}{7} i +\frac{1200}{7}j+\frac{400}{7} k [Lb]](https://tex.z-dn.net/?f=F_%7BAB%7D%3D-%5Cfrac%7B600%7D%7B7%7D%20i%20%2B%5Cfrac%7B1200%7D%7B7%7Dj%2B%5Cfrac%7B400%7D%7B7%7D%20k%20%5BLb%5D)
De esta manera realizando el producto cruz tenemos
![M_{O}=0i-685.7j+2057.1k [Lb*in]](https://tex.z-dn.net/?f=M_%7BO%7D%3D0i-685.7j%2B2057.1k%20%5BLb%2Ain%5D)
Para calcular el momento con respecto a la diagonal OC, necesitamos el vector unitario de esta diagonal.
![OC = (12,24,0)-(0,0,0)\\OC= 12i+24j+0k[Lb]\\LOC = \frac{12i+24j+0k}{\sqrt{(12)^{2} +(24)^{2} +(0)^{2} } } \\LOC=\frac{12}{\sqrt{720}}i+\frac{24}{\sqrt{720}}j +0k](https://tex.z-dn.net/?f=OC%20%3D%20%2812%2C24%2C0%29-%280%2C0%2C0%29%5C%5COC%3D%2012i%2B24j%2B0k%5BLb%5D%5C%5CLOC%20%3D%20%5Cfrac%7B12i%2B24j%2B0k%7D%7B%5Csqrt%7B%2812%29%5E%7B2%7D%20%2B%2824%29%5E%7B2%7D%20%2B%280%29%5E%7B2%7D%20%7D%20%7D%20%5C%5CLOC%3D%5Cfrac%7B12%7D%7B%5Csqrt%7B720%7D%7Di%2B%5Cfrac%7B24%7D%7B%5Csqrt%7B720%7D%7Dj%20%20%2B0k)
El vector con respecto al eje OC, es igual al producto punto del momento en el punto O por el vector unitario LOC
![M_{OC}=L_{OC}*M_{O}\\M_{OC}=(\frac{12}{\sqrt{720}}i +\frac{24}{\sqrt{720}} j+0k )* (0i-685.7j+2057.1k)\\M_{OC}= -613.32[Lb*in]](https://tex.z-dn.net/?f=M_%7BOC%7D%3DL_%7BOC%7D%2AM_%7BO%7D%5C%5CM_%7BOC%7D%3D%28%5Cfrac%7B12%7D%7B%5Csqrt%7B720%7D%7Di%20%2B%5Cfrac%7B24%7D%7B%5Csqrt%7B720%7D%7D%20j%2B0k%20%29%2A%20%280i-685.7j%2B2057.1k%29%5C%5CM_%7BOC%7D%3D%20-613.32%5BLb%2Ain%5D)
