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bagirrra123 [75]
3 years ago
8

14. The inner transition metals are made up two series known as:

Physics
1 answer:
o-na [289]3 years ago
8 0

Answer:

lanthanide and actinide

Explanation:

An inner transition metal (ITM) of chemical elements on the periodic table. They are normally shown in two rows below all the other elements. They include elements 57-71, or lanthanides, and 89-103, or actinides.

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If two metal balls each have a charge of -10^-6 C and the repulsive force between them is 1 N, how far apart are they? (Coulomb'
Vitek1552 [10]

Answer:

The distance between the charges is 9.5 cm

(c) is correct option

Explanation:

Given that,

Charge q= 10^{-6}\ C

Force F = 1 N

We need to calculate the distance between the charges

Using Coulomb's formula

F = \dfrac{kq_{1}q_{2}}{r^2}

Where, q = charge

r = distance

F = force

Put the value into the formula

1=\dfrac{9.0\times10^{9}\times(-10^{-6})^2}{r^2}

r=\sqrt{9\times10^{9}\times(-10^{-6})^2}

r=0.095\ m

r= 9.5\ cm

Hence, The distance between the charges is 9.5 cm

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valentinak56 [21]

Answer:

D, using a spring scale to exert a force on the block. Measure the acceleration of the block and the applied force

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3 0
3 years ago
What is commonly used to run a central heating system?
kvv77 [185]
Electrical energy is and 100% correct answer
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If a permanent magnet picks up a steel paper clip, the paper clip also
kiruha [24]

I think it is

C. An interaction between electricity and magnetism produces an

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What existed originally that became the deposits of fossil fuels?
posledela

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