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IRISSAK [1]
2 years ago
9

Which identifies that a chemical reaction has occurred?

Physics
1 answer:
mixer [17]2 years ago
8 0
A change of colour, heat being released or fizzing (a gas being released)
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If you take a deep breath of air, you can float more easily in water because you have _____.
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the answer is c

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Two glasses of water have the same thermal energy. must they have the same temperature? explain.
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What is a description of compounds?
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Positive charge Q is placed on a conducting spherical shell with inner radius R1 and outer radius R2. The electric field at a po
gregori [183]

Answer:

E = 0    r <R₁

Explanation:

If we use Gauss's law

      Ф = ∫ E. dA = q_{int} / ε₀

in this case the charge is distributed throughout the spherical shell and as we are asked for the field for a radius smaller than the radius of the spherical shell, therefore, THERE ARE NO CHARGES INSIDE this surface.

Consequently by Gauss's law the electric field is ZERO

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6 0
3 years ago
Semi-trailer trucks have an odometer on one hub of a trailer wheel. The hub is weighted so that it does not rotate, but it conta
shtirl [24]

Answer:

1020 km

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The circumference is

C = \pi d

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