3 years ago

Which idea did Ptolemy’s model use to explain why the planets appeared to move backward as they moved in their orbits?

Physics

1 answer:

Gnoma [55]3 years ago

4 0

Answer:

The planets spun in epicycles.

Explanation:

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Which statement best describes the movement of electrical current when a capacitor is used in a circuit?

lukranit [14]

Answer:

The discharge of a capacitor changes the direction of the current

Explanation:

Capacitor is used to store charges. Changing and discharging a capacitor changes the direction of the current.

When a capacitor is charging, current flows towards the positive plate and away from the negative plate. When the capacitor is discharging, current flows away from the positive and flows towards the negative plate, in the opposite direction. During these two processes (charging and discharging), it can be seen that the direction of the current is changed.

Therefore, the discharge of a capacitor changes the direction of the current

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4 years ago

A material that transmits nearly all the light in a ray because it offers little resistance to the light is

Amanda [17]

The answer is D, transparent

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3 years ago

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Do you thin it is possible to have the benefits of the Agricultural and Industrial revolutions without the environmental costs?

Julli [10]

Answer:No

Explanation:There is no current technology which supports zero waste exhaust

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3 years ago

In Einstein’s theory of gravitation, gravity is due to:

777dan777 [17]

Answer:

B, caused by the presence of mass

Explanation:

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3 years ago

In the World Pond Hockey tournament held in Plaster Rock, NB, a puck on the ice travels 20.0 m [25° W of N], gets deflected, and

andreev551 [17]

Hi, thank you for posting your question here at Brainly.

Basically, the problem asks you to find the resultant (R) vector quantity, which is the displacement. Illustrate the problem. Then, find the missing angles. In this case, the angle opposite to R is 150 degrees. Then, using the cosine law:

$R^{2} = 30^{2} +20^{2} -2(30)(20)(cos150)$
R = 48.36 m

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4 years ago