All categories

3 years ago

Explain how these convection currents cause the crust of the Earth to move

1 answer:

3 0

<span> The crustal plates float on the mantle, convection currents within the mantle act as a current and the plates on top of the mantle simply get carried by that current. Hope this helped :)
</span>

You might be interested in

What is the wave length if the distance from the central bright region to the sixth dark fringe is 1.9 cm . Answer in units of n

Yuri [45]

Complete Question

The complete question is shown on the first uploaded image

Answer:

The wavelength is $\lambda = 622 nm$

Explanation:

From the question we are told that

The distance of the slit to the screen is $D = 5 \ m$

The order of the fringe is m = 6

The distance between the slit is $d = 0.9 \ mm = 0.9 *10^{-3} \ m$

The fringe distance is $Y = 1.9 \ cm = 0.019 \ m$

Generally the for a dark fringe the fringe distance is mathematically represented as

$Y = \frac{[2m - 1 ] * \lambda * D }{2d}$

=> $\lambda = \frac{Y * 2 * d }{[2*m - 1] * D}$

substituting values

=> $\lambda = \frac{0.019 * 2 * 0.9*10^{-3} }{[2*6 - 1] * 5}$

=> $\lambda = 6.22 *10^{-7} \ m$

$\lambda = 622 nm$

8 0

2 years ago

A heat engine takes in 840 kJ per cycle from a heat reservoir. Which is not a possible value of the engine's heat output per cyc

zhannawk [14.2K]

We have by the first law of thermodynamics tha energy is preserved, hence we cannot have over 840kJ per cycle. We have by the laws of thermodynamics (the 2nd one in specific) that the entropy of a system cannot increase. We cannot have an output of 840 kJ per cycle from a heat engine because then that would mean that the entropy would stay the same, while any heat engine increases it. Hence, any value $\geq 840 kJ$ is acceptable.

8 0

2 years ago

C is correct just an FYI

belka [17]

Answer:

Huh?

Explanation:

3 0

2 years ago

Which describes how to generate a real image of an object using a concave mirror?

Naddika [18.5K]

A concave mirror is curved inward in the middle, more like a cave. Because the mirror is curved inward, the angle of the light surface can be focused similar to that of the camera. They can form real images that are projected out in front of the mirror at the place where light focuses. When the object is located at the center of the curvature the image formed will also be at the curvature. The image will be inverted and the magnification value is equal to 1 which will become a real image because the ray of light converges at the location of the formed image.

7 0

2 years ago

Read 2 more answers

What is a solenoid?

Andrews [41]

Answer: C

Explanation:

A solenoid is a coil of wire that acts like a magnet when electric current travels through it

5 0

2 years ago