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geniusboy [140]
3 years ago
6

What is used in the name of ionic compounds containing a cation with multiple charges to indicate which charge?

Physics
1 answer:
Arisa [49]3 years ago
8 0

Answer:

Roman Numerals?

Explanation:

Iron(II), would be iron 2+

iron(III), would be iron 3+

for example.

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What is the frequency of a wave whose wavelength is 0.7m and whose velocity is 120m/s?
ANEK [815]

Answer:

f=171.43Hz

Explanation:

Wave frequency is the number of waves that pass a fixed point in a given amount of time.

The frequency formula is: f=v÷λ, where <em>v</em> is the velocity and <em>λ</em> is the wavelength.

Then replacing with the data of the problem,

f=\frac{120\frac{m}{s} }{0.7m}

f=171.43\frac{1}{s}

f=171.43 Hz (because \frac{1}{s} = Hz, 1 hertz equals 1 wave passing a fixed point in 1 second).

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A rocket ship starts from rest and turns on its forward booster rockets causing it to have a constant acceleration of 4 meters p
bagirrra123 [75]

Complete question is;

A rocket ship starts from rest and turns on its forward booster rockets, causing it to have a constant acceleration of 4 m/s² rightward. After 3s, what will be the velocity of the rocket ship?

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Explanation:

We are given;

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To find velocity after 3 s, we will use Newton's first equation of motion;

v = u + at

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