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sergiy2304 [10]
2 years ago
9

A radio wave travels 186,000 miles per second. How many kilometers will the wave travel in one microsecond? (1 mile = 1.61 km)

Chemistry
1 answer:
Komok [63]2 years ago
6 0
1) 1 second = 1000000 microseconds

2) 186000 / 1.61 = 115527.9503 Km

3) We use the equation:
Speed = distance / time

4) rearrange for distance by multiplying both sides by time to get;

Distance = speed x time


5) plug in the values:

Distance = 115527.9503 x 0.000001
= 0.1155279503 Km
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Use the portion of the periodic table shown below to answer the questions.
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The two elements that have the same properties as sodium are potassium  and rubidium .

<h3>What is periodic table?</h3>

The periodic table is an arrangement of the elements in order of increasing atomic number.

From the list, the two elements that have the same properties as sodium are potassium  and rubidium .

Proton has an atomic number of 20 and a mass number of 40. The number of electrons is the same as the number of protons. Given that the atomic number is the number of protons present, we have 20 electrons and 20 protons.

Number of neutrons = Mass number  - Number of protons

= 40 - 20 = 20 neutrons

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4 0
2 years ago
What is a change that will not affect the pressure in a container ? A.increasing the volume of the fluid B . Changing the materi
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Answer:

B . Changing the material that the fluids container is made of

Explanation:

Changing the material of the container does not affect the pressure in a container whereas increasing the volume, changing the weight of the fluid, and heating/cooling the fluid will all change the pressure.

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3 years ago
Even though cities may be located at approfimately the same latitude, why might the
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C. Warm ocean currents bring warmer temperatures to coastal cities

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3 years ago
Which is a compound?
Dmitry [639]
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While it is possible that the material the nails are made out of is a compound, we are not given this information. Simply stating that nails (no matter the size) are in a box, does not make it a compound.
4 0
3 years ago
What volume will 75 g of O2 occupy at STP?
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p = latm

t = 273.15K

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9

Ideal gas law: PV = nRT, solve for volume: V = nRT P

V =

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latm

3 0
3 years ago
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