<h2>
Answer:</h2>
3.01 atm
<h2>
Explanation:</h2>
According to Gay-Lussac's law, the pressure (P) of a given mass of gas when volume is left constant is directly proportional to the kelvin temperature (T) of the gas. i.e
P ∝ T
P = kT
Where;
k = proportionality constant
=> 
= k
=> 
= 
-------------------(i)
Where;
and 
are the initial and final pressures of the gas
and 
are the initial and final temperatures of the gas
From the question;
= 2.48 atm
= ?
= 21°C = (21 + 273)K = 294K
= 84°C = (84 + 273)K = 357K
Substitute these values into equation (i) as follows;
=> 
= 
Solve for
= 
= 3.01 atm
Therefore the pressure will be 3.01 atm
Answer:
Mitochondria and chloroplast are organelles found in a plant cell. However, chloroplast is absent in an animal but mitochondria is found in both. Mitochondria generates energy for the cell in the form of ATP using oxygen and nutrients. Chloroplast is the site for photosynthesis in a plant cell.
Answer
Force will be 1520.2604 N
Explanation:
We have given mass of the bullet m = 10.1 gram = 0.0101 kg
Distance S= 0.6 m
Final velocity v = 425 m/sec
Initial velocity u will be 0 m/sec
From third equation of motion 
We know that force is given by F = ma
So force = 0.0101×150520.833 = 1520.2604 N
Answer:
In B: Epb=9J
Explanation:
Potential energy: Ep=mgh where m is the mass, h altitude.
In point A: h=20cm=0.2m
Epa=12=0.2×mg. Thus mg=12/0.2=60N
In point B: Epb=mg×0.15=60×0.15=9J
