Answer:
Explanation:
Given
no of moles 
Temperature raised 
Work done by gas





(b)Energy Transferred as heat

=specific heat at constant Pressure
for ideal Mono atomic gas is 


(c)Change in Internal Energy


(d)Change in average kinetic Energy 

,where k=boltzmann constant


B. Barometer is used to measure atmospheric pressure.
The initial velocity is obtained as 2.5 m/s.
<h3>What is the initial speed?</h3>
To obtain the initial speed, we have to apply the law of conservation of linear momentum which states that momentum before collision is equal to momentum after collision.
Now, the two fragments initially had one velocity before they were split in two directions opposite each other;
Applying the principle of conservation of linear momentum to this problem;
(2 + 10)v = (6 * 10) - (2 * 15) (they moved in opposite directions)
12v =60 - 30
12v = 30
v = 30/12
v = 2.5 m/s
Learn more about momentum:brainly.com/question/24030570
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Do we know how long it took to accelerate?
It was formed by ancient volcanic eruptions.