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3 years ago

Aehaeheahsdnesrthwahweahaw

Physics

1 answer:

WINSTONCH [101]3 years ago

5 0

Answer No explanation

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Which would be an adaptation for living in the tundra?

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Answer:A hibernation to lower metabolism in the winter

Explanation:

the others would not be beneficial in the tundra since the tundra is cold adaptations that retain heat would be best

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3 years ago

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When you speak or sing, you force air through your ?

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You force air from your lungs up through your larynx which is commonly called the voicebox

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4 years ago

Wave length of sodium light is 5893A express in nanometre

DaniilM [7]

Answer:

589.3 nm

Explanation:

The wavelength of a sodium light is 5893 A.

We need to find the wavelength in nm.

$5893\ A=5893\times 10^{-10}\ m$

Also, $1\ nm=10^{-9}\ m$

$5893\ A=5893\times 10^{-9}\times 10^{-1}\ m\\\\=5893\times 10^{-1}\ nm\\\\=589.3\ nm$

So, the wavelength of sodium light is 589.3 nm.

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3 years ago

Consider an insulating sphere of radius 6 cm surrounded by a conducting sphere of inner radius 18 cm and outer radius 26 cm. Fur

dimulka [17.4K]

Answer:

$-1.7908787542\times 10^{-9}\ C$

$3.4260289211\times 10^{-9}\ C$

$1.7908787542\times 10^{-9}\ C$

$1.6351501669\times 10^{-9}\ C$

Explanation:

r = Radius

k = Coulomb constant = $8.99\times 10^{9}\ Nm^2/C^2$

Electric field is given by

$E=-\dfrac{kq}{r^2}\\\Rightarrow q=-\dfrac{Er^2}{k}\\\Rightarrow q=-\dfrac{1610\times 0.1^2}{8.99\times 10^9}\\\Rightarrow q=-1.7908787542\times 10^{-9}\ C$

The charge is $-1.7908787542\times 10^{-9}\ C$

$Q+q=\dfrac{Er^2}{k}\\\Rightarrow Q=\dfrac{Er^2}{k}-q\\\Rightarrow Q=\dfrac{120\times 0.35^2}{8.99\times 10^9}-(-1.7908787542\times 10^{-9})\\\Rightarrow Q=3.4260289211\times 10^{-9}\ C$