3 years ago

What conditions are required for a cloud to form in the atmosphere?

1 answer:

6 0

Water vapour and a drop in temperature to condense water vapour into a cloud. Something to see the cloud also, such as "pollution" particles.

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svetoff [14.1K]

D.) In order to calculate both of them, we must know the "FORCE" on the system.

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3 years ago

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Two nuclei have mass number in the ratio of 2:5 what is the ratio of their number densities <br>

egoroff_w [7]

Answer:

Explanation:

The ratio of their nuclear densities is 1, as nuclear density is constant for all nuclei.

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3 years ago

Five identical cylinders are each acted on by forces of equal magnitude. Which force exerts the biggest torque about the central

elena-s [515]

Answer:

<em>From the image, the force as shown in option A will exert the biggest torque on the cylinder about its central axes.</em>

Explanation:

The image is shown below.

Torque is the product of a force about the center of rotation of a body, and the radius through which the force acts. For a given case such as this, in which the cylinders are identical, and the forces are of equal magnitude, the torque at the maximum radius away from the center will exert the maximum torque. Also, the direction of the force also matters. To generate the maximum torque, the force must be directed tangentially away from the circle formed by the radius through which the force acts away from the center. Option A satisfies both condition and hence will exert the most torque on the cylinder.