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Masja [62]
3 years ago
7

Why earth have gravity?

Physics
1 answer:
Yuki888 [10]3 years ago
4 0

On earth there is a force within the planet. This force creates a sort of magnet to keep the planet's being and thing on it together. This force also has a role in the solar system as it helps it move.

The source: https://spaceplace.nasa.gov/what-is-gravity/en/

Hope i helped

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The reacting force that is equal to and opposite in the direction to the centripetal force and tends to fling air out of the cen
BARSIC [14]

Answer:

Centrifugal force

Explanation:

The reacting force that is equal to and opposite in the direction to the centripetal force and tends to fling air out of the center of rotation of High and Low pressure systems is called centrifugal force.

Centrifugal force is force that causes an object moving in a circular path to move out and away from the center of it's path, it always centripetal force and the force is imaginary, which can only be felt and not seen.

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3 years ago
Using the information from Paul Hewitt's Conceptual Development Practice Page 25-1 and the image below, answer the following que
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Answer:

A = 2 cm ,   λ = 8 cm

Explanation:

The amplitude of a wave is the maximum height it has, in this case the height is measured by the vertical ruler,

We are told the balance point is in the reading of 5 cm, that the maximum reading is 3 cm and the Minimum reading is 7 cm. Therefore, the distance from the ends of the ridge to the point of equilibrium is

          d = 7-5 = 2 cm

          d = 5-3 = 2 cm

          A = 2 cm

The wavelength is the minimum horizontal distance for which the wave is repeated, that is measured by the horizontal ruler.

The initial reading for 4 cm and the final reading for 8 cm, this distance corresponds to a crest of the wave, the complete wave is formed by two crests whereby the wavelength is twice this value

          Δx = 8-4 = 4 cm

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What will an object weigh on the moon's surface if it weighs 190 n on earth's surface?
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Turn your protracted to a 90 degree angle
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What effort force will be required to lift the 20 N object using the pulley above?
Umnica [9.8K]

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I think it is 5N.

Explanation:

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