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djverab [1.8K]
3 years ago
14

How can you tell that toast is not warmed up by conduction?

Physics
1 answer:
solmaris [256]3 years ago
8 0

Answer:

Toasting in a toaster is usually considered  by (infra red) radiation. But the hot coils touch the toast so an element of heating by conduction occurs as well.

Explanation:

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Which of the following occurs first in the generation of an action potential?
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3 years ago
Does the sun fuse hydrogen into helium or vice versa?
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A wave with a wavelength of 125 meters is moving at a speed of 20 m/s. What is it’s frequency
IceJOKER [234]

Answer:

0.16Hz

Explanation:

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frequency (F) = ?

Recall that frequency is the number of cycles the wave complete in one

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So, apply the formula V = F λ

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8 0
3 years ago
Light of wavelength 500 nm is incident perpendicularly from air on a film 10-4cm thick and of refractive index 1.375. Part of th
Marysya12 [62]

Answer

given,

wavelength (λ)= 500 n m

thickness of film= 10⁻⁴ cm

refractive index = μ = 1.375

distance traveled is double which is equal to 2 x 10⁻⁴ cm

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     N = \dfrac{d}{\mu\lambda}

     N = \dfrac{2 \times 10^{-6}}{1.375\times 500 \times 10^{-9}}

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           N = 3

b) phase difference is equal to

Reflection from the first surface has a 180° (½λ) phase change.

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6 0
3 years ago
Which is not an element? Water , Arsenic, sodium, Aluminum
MrRa [10]

Answer:

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3 0
4 years ago
Read 2 more answers
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