Answer:
Explanation:
From first law of thermodynamics
Q = ΔE + W
Q is heat added , ΔE is increase in internal energy and W is work done.
Here Q = - 963.6 kJ , - ve sign because head is absorbed
ΔE - 2836 kJ , negative sign given ( gas cooled )
Putting these values in the equation above
- 963.6 = - 2836 + W
W = 2836 - 963.6 kJ
= 1872.4 kJ .
Answer:
The 60 kg skater is traveling at 2.63 m/s in the opposite direction from the 45 kg skater.
Explanation:
The velocity of the 60 kg skater can be found by conservation of linear momentum:
(1)
Where:
: is the mass of the first skater = 45 kg
: is the mass of the second skater = 60 kg
: is the initial speed of the first skater = 0 (he is standing still)
: is the initial speed of the second skater = 0 (he is standing still)
: is the final speed of the first skater = 3.5 m/s
: is the final speed of the second skater =?
By replacing the above values into equation (1) and solving for we have:
The minus sign is because the 60 kg skater is moving in the opposite direction from the other skater.
Therefore, the 60 kg skater is traveling at 2.63 m/s in the opposite direction from the 45 kg skater.
I hope it helps you!
Answer:
<h2 /><h2>1) Radon is colorless at standard temperature and pressure and it is the most dense gas known. At temperature below it's freezing point is has a brilliant yellow phosphorescence. It is chemically unreactive, it is highly radioactive and has a short half life.</h2>
<h2>2) 7.5 times heavier than air and more than 100 times heavier than hydrogen. The gas liquefies at −61.8 °C (−79.2 °F) and freezes at −71 °C (−96 °F). On further cooling, solid radon glows with a soft yellow light that becomes orange-red at the temperature of liquid air (−195 °C [−319 °F]).</h2>
<h2 /><h2 /><h2 />
Explanation:
<h2>I think this much is enough , as more information </h2><h2>is given in other answer if more is needed just </h2><h2>comment me I will answer you there only.</h2>
Answer:
Depends
Explanation:
If you play baseball on a team then yes if you don't and you play on your free time then no it isn't work because your doing it for fun now if you do it on a team then you are working with your team and winning as a team
