152 questions and answers in this section

Natural Sciences » Physics

Explain why perpetual motion is impossible.

Explain why perpetual motion is impossible.

When we talk about perpetual motion, the first reason why it is impossible to achieve it is related to the principle of conservation of energy. This fundamental...

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Explain why time seems to pass more slowly at the bottom of a mountain?

Explain why time seems to pass more slowly at the bottom of a mountain?

The perception of time can vary depending on various factors such as the environment, the activity we are engaged in, and our emotional state. Our...

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Explain why electrical cables need to be insulated?

Explain why electrical cables need to be insulated?

Electrical cables must be insulated for several reasons. Insulation of electrical cables is essential to ensure the safety of individuals, protect electrical equipment, and prevent...

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Explain why tomatoes grow better with basil?

Explain why tomatoes grow better with basil?

When tomatoes and basil are planted together, they benefit from complementary nutritional needs. Tomatoes need nutrients such as potassium, phosphorus, and nitrogen, while basil requires...

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Explain why Newton's apple trees have such significance?

Explain why Newton's apple trees have such significance?

Isaac Newton is associated with a famous legend involving an apple tree. According to this well-known story, Newton was walking in an orchard when an...

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Explain why a hot object seems lighter than a cold object?

Explain why a hot object seems lighter than a cold object?

When an object is heated, its temperature increases, causing an increase in its volume. This phenomenon is known as thermal expansion. In other words, thermal...

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Explain why mirrors reverse the image.

Explain why mirrors reverse the image.

The reflection of light is the primary reason why mirrors reverse images. When a beam of light strikes the surface of a mirror, it is...

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Explain why rubbing your fingers together warms them up?

Explain why rubbing your fingers together warms them up?

When you rub your fingers together, you convert some of the kinetic energy of the movement into heat. This phenomenon is due to the resistance...

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Explain why clothing friction creates static electricity.

Explain why clothing friction creates static electricity.

Static electricity is a phenomenon that occurs when electric charges are created by the friction of two objects. This electric charge is due to the...

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Explain why the phenomenon of mirage can sometimes create astonishing optical illusions.

Explain why the phenomenon of mirage can sometimes create astonishing optical illusions.

The phenomenon of mirage originates from variations in air temperature near the Earth's surface. These variations create temperature gradients that affect the speed of light, causing optical...

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