Answer:
1.c,2.c,3.a,4.d
Explanation:
the following answer are listed with there number
We can use the equation of
E = mc△T
To calculate the total heat absorbed.
E is the total heat absorbed (energy used)
m is mass.
c is specific heat capacity and
△T is the temperature change.
E = 125 x 4.184 x (32.8 - 25.2)
E = 3974.8 J
Therofre the total heat absorbed is 3974.8 joules.
The energy is involved in ionization, electron affinity etc
The following are the conditions that favor the creation of covalent bonds since they are generated by the mutual sharing of electrons:
- Electron affinity, first. If both atoms have a strong electron affinity, a covalent link is often preferred between them.
- The energy of ionization. The ionization energy of the two atoms participating in the bonding process should be high.
- Atomic Dimension. The atoms that form covalent bonds should have lower atomic sizes. Stronger covalent bonds are created when atoms have smaller atomic radii.
- Electronegativity. Both atoms' electronegativities ought to be high. The two atoms' electronegativities should differ as little as possible.
- In order to establish covalent bonds, the atoms' high ionization energy is involved.
To learn more about covalent bond visit:
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Answer:
the sound intensity level for actual intensity ( without the earplugs ) is 103.8 dB
Explanation:
Given the data in the question;
sound intensity reduced by the factor, m = 305
the sound intensity level experienced by the crew members wearing protective earplugs, L = 79 dB
Now, using the expression of sound intensity level;
L = 10log( 
)
where is the intensity at L level
so we substitute
79 = 10log( )
= 
Now, expression for actual intensity;
= m
where is the actual intensity
so we substitute
= 305 ×
Next, we write the expression of sound intensity level for reduced intensity;
L' = 10log( )
So we substitute
L' = 10log( 305 × )
L' = 10log( 24227011159.09058 )
L' = 103.8 dB
Therefore, the sound intensity level for actual intensity ( without the earplugs ) is 103.8 dB
Answer:
0 V
Explanation:
- The potential for the charge to flow through the circuit and back to the same terminal means that work-done per unit length i.e Potential difference is zero because the total work-done for the charge to complete the loop and back at the same point " Terminal "
Potential difference = 6 - 6 = 0 V
