3 years ago

An empty plastic or glass dish being removed from a microwave oven is cool to the touch. How can this be possible

1 answer:

8 0

Plastic and glass are both poor heat conductors. They are insulators which means their electrons don’t move as freely as conductors.

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3 years ago

The velocity of the transverse waves produced by an earthquake is 4.05 km/s, while that of the longitudinal waves is 7.695 km/s.

lora16 [44]

Answer:

x = 600 Km

Explanation:

given,

speed of transverse wave = 4.05 Km/s

speed of longitudinal wave = 7.695 Km/s

difference of the time of arrival of wave = 69.9 s

now,

t₂ - t₁ = 69.9 s

let x be the distance

$\dfrac{x}{4.05} - \dfrac{x}{7.695} = 69.9$

$x = \dfrac{69.9\times 4.05 \times 7.695}{7.695-4.05}$

x = 597.645 Km

x = 600 Km

distance of recorder from the site is 600 Km approximately.

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4 years ago

One disadvantage to experimental research is that experimental conditions do not always reflect reality.

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Answer:

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3 years ago

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In chemistry, potential energy is usually considered to be the energy _____________.

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The answer is option D. Stored in the chemical bonds.

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3 years ago

Which can cause blockage of the ear canal, leading to hearing loss? aging disease earwax noise

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Earwax helps to protect your ears from infection so if you like chewing gum, this helps in removing the wax. But this might not happen at your young age. So if you grow and still likes chewing gum it will remove the wax completely thereby leading to loss on hearing

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