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liberstina [14]
3 years ago
9

why do signs at petrol stations warn people not to use cell phones while filling the petrol in their cars?​

Physics
1 answer:
love history [14]3 years ago
5 0
Cell phones may be radioactive.Maybe this is the reason???.
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When frequency increases, the wavelength halves.
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3 years ago
A motion sensor acts as a transmitter when it sends out pulses and as a receiver when it listens for echoes. The delay ∆t betwee
Oksi-84 [34.3K]

Answer:

1.526 m

Explanation:

The motion sensor sends sound waves in air which travels at a speed of 343 m per second at 20 degree. If d be the distance of the reflecting object

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3 years ago
What could be used as another word for electrical potential
tekilochka [14]

Answer:

hey mate

answer is probably voltage as per me

as

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5 0
3 years ago
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olchik [2.2K]

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C)T

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