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Lady_Fox [76]
3 years ago
9

Which of the following would be an atom of Gold (AU)? *

Physics
1 answer:
Rus_ich [418]3 years ago
5 0

Answer:

c

Explanation:

well! a and d are out of topics because proton and electron must be same so do the answer c and d are differ in neutron so u can find it by subtracting mass to atomic number have a nice day !

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A mixture of helium and argon gas is expanded from a volume of 29.0L to a volume of 82.0L, while the pressure is held constant a
finlep [7]

Answer:

322 kJ

Explanation:

The work is the energy that a force produces when realizes a displacement. So, for a gas, it occurs when it expands or when it compress.

When the gas expands it realizes work, so the work is positive, when it compress, it's suffering work, so the work is negative.

For a constant pressure, the work can be calcutated by:

W = pxΔV, where W is the work, p is the pressure, and ΔV is the volume variation. To find the work in Joules, the pressure must be in Pascal (1 atm = 101325 Pa), and the volume in m³ (1 L = 0.001 m³), so:

p = 60 atm = 6.08x10⁶ Pa

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W = 6.08x10⁶x0.053

W = 322x10³ J

W = 322 kJ

8 0
3 years ago
It is important to maintain septic systems in order to
Andreyy89
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3 0
3 years ago
What is the force of gravity?
VladimirAG [237]

Answer:

2. 4.63 x 10 to the -11th power

Explanation:

m1 = 3.1, m2= 6.3, d = 5.3, G = 6.67 × 10^-11

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d² = 5.3² = 28.1

19.5/28.1 = 0.694

(6.67 · 10^-11) · 0.694 = 4.63 × 10^-11

7 0
2 years ago
Read 2 more answers
What is the critical angle of light traveling from benzene (n=1.501) into air?
Taya2010 [7]
The critical angle formula should be: sin^-1(1/n) 

 where "n" is 1.501 into the air

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4 0
4 years ago
The frequency of sound is 200 Hz. What does it mean? Please help me​
Norma-Jean [14]

Explanation:

A wave having a frequency of 200 Hz means that 200 such waves pass through a point per second.

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3 years ago
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