3 years ago

What would have made it easier to find a winning combination combination of power plants?

1 answer:

8 0

Answer:

Furthermore, the AEC said that the Joint Committee has made its position clear that it would no longer authorize any such subsidies. Yet, Mr. Chairman, we find.

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A force F acts at one corner of a thin, square metal plate. The force acts in the same plane as the plate. Which dashed line rep

Delvig [45]

The image of the thin square metal plate showing the force and the lines are missing, so i have attached it.

Answer:

Line B represents the lever arm

Explanation:

From the attached image, we can see 4 different dashed lines between the force F and the moment centroid O.

Now, we want to know which of the dashed lines represents lever arm.

Now, in physics/engineering, the lever arm which is also known as moment arm is defined as the perpendicular distance between the line of action of the acting force and the centre of the moments.

Now, from the image attached, the only dashed line that is perpendicular to the acting Force F and the moment centre O is Line B.

Thus,line B represents the lever arm

6 0

3 years ago

Light shines through a single slit whose width is 5.6 × 10-4 m. A diffraction pattern is formed on a flat screen located 4.0 m a

Mrac [35]

Answer:

462 nm

Explanation:

Given: width of the slit, d = 5.6 × 10⁻⁴ m

Distance of the screen, D = 4.0 m

Fringe width, β = 3.3 mm = 3.3 × 10⁻³ m

First dark fringe means n =1

Wavelength of the light, λ = ?

$\beta = \frac{\lambda D}{d}\\ \Rightarrow \lambda = \frac{d \beta}{D} =\frac{5.6\times 10^{-4} \times 3.3 \times 10^{-3}}{4.0} = 4.62 \times 10^{-7}m = 462 nm$