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Naddika [18.5K]
3 years ago
9

Alkali metals are extremely reactive because they a. have very small atomic masses. b. are not solids at room temperature.

Physics
1 answer:
irinina [24]3 years ago
5 0

Answer:

a.

Explanation:

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3 years ago
A uniform, solid, 2000.0 kgkg sphere has a radius of 5.00 mm. Find the gravitational force this sphere exerts on a 2.10 kgkg poi
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0.0110284391534\ N

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Force of gravity is given by

F=\dfrac{Gm_1m_2}{r^2}\\\Rightarrow F=\dfrac{6.67\times 10^{-11}\times 2000\times 2.1}{(5.04\times 10^{-3})^2}\\\Rightarrow F=0.0110284391534\ N

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3 years ago
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