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Sergeeva-Olga [200]
3 years ago
8

A cheetah runs at a velocity of 29 m/s [N]. If it runs 8.4s ,what is it’s displacement?

Physics
1 answer:
vovikov84 [41]3 years ago
6 0

Velocity = displacement / time

displacement  = velocity × time

  d =                    29 ms⁻¹ ˣ  8.4 s

   d =                    243.6 m                  


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Which material would provide the
Bogdan [553]

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C) Plastic

Explanation:

Copper, silver, and gold all conduct electricity. Therefore, the material that would provide the most resistance for electricity would be plastic.

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How does an atom of chlorine-37 become a chloride ion with a -1 charge?
kirill115 [55]

Answer:

B. The atom gains 1 electron, to make a total of 18 electrons.

Explanation:

Chlorine is the 17th element in the periodic table, so it has atomic number 17:

Z = 17

This means that a neutral atom of chlorine has 17 protons and 17 electrons.

When a chlorine atom gains 1 electron, its electric charge (initially zero) becomes -1, since the electron has negative charge of -1 (in elemntary charge units). This also means that the number of electrons in the ion is now

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So the correct answer is

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5 0
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In a nuclear station if the temperature of the superheated water starts to decrease what should the engineer in charge of the re
Sophie [7]

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8 0
2 years ago
I need all the answers to all of them today cause I have to give it in tomorrow
k0ka [10]
1. Volume
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6 0
3 years ago
If the atmospheric pressure in a tank is 23 atmospheres at an altitude of 1,000 feet, the air temperature in the tank is 700F, a
liraira [26]

Answer:

W = 289.70 kg

Explanation:

Given data:

Pressure in tank = 23 atm

Altitude 1000 ft

Air temperature  in tank T = 700 F

Volume of tank = 800 ft^3 = 22.654 m^3

from ideal gas equation we have

PV =n RT

Therefore number of mole inside the tank is

\frac{1}{n} = \frac{RT}{PV}

              = \frac{8.206\times 10^{-5}} 644.261}{23\times 22.654}

               = 1.02\times 10^{-4}

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we know that 1 mole of air weight is 28.97 g

therefore, tank air weight is W = 10^4\times 28.91 g = 289700 g

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6 0
3 years ago
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