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GalinKa [24]
3 years ago
10

I am ion with 17 protons, 18 neutrons, and 18

Physics
1 answer:
gtnhenbr [62]3 years ago
7 0

Answer:

chloride, ion, -1, this is an anion

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All of those are stars.
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What is the average speed of a train that travels at 100km/hr for 6 hours and then 120km/hr for 5 hours
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Answer:

Explanation:

Average speed = Total distance / Total time.

100 km/hr

r = 100 km / hr

t = 6 hours

d = 6 * 100 = 600 km

120 km / hr

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t = 5 hour

d = 120 * 5

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Which of the following is considered an energy source and a building block for the human body?
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A tensile test specimen has a gage length = 50 mm and its cross-sectional area = 100 mm2. The specimen yields at 48,000 N, and t
Shalnov [3]

Answer:

a) yield strength

   \sigma_y = \dfrac{F_y}{A} = =\dfrac{48000}{100} = 480 MPa

b) modulus of elasticity

strain calculation

\varepsilon_0=\dfrac{L-L_0}{L_0}=\dfrac{50.23-50}{50} = 0.0046

strain for offset yield point

\varepsilon_{new} = \varepsilon_0 -0.002

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now, modulus of elasticity

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    = 184615.28 MPa = 184.615 GPa

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e) percentage of area reduction

\% Area\ reduction = \dfrac{A-A_f}{A}\times 100=\dfrac{100-53}{100}= 47 \%                            

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