So 1 kg = 2.2 pounds.
66kg | 2.2 pounds
--------| ------------------
| 1kg
I set it up like this. The 66 kg crosses out with the 1kg. So you multiply the top 66 x 2.2 = 145.2 pounds
The combined gas law says: (P₁*V₁)/T₁=(P₂*V₂)/T₂ where P is the pressure in Pascals, V is the volume in m³ and T is the temperature in degrees Kelvin.
P₁=1.82 atm= 184411.5 Pa
P₂= 1.41 atm =142868.3 Pa
V₁=18.7 m³
V₂=25.1 m³
T₁=353 K
T₂=?
Lets solve the combined gas equation for T₂:
T₂*(P₁*V₁)/T₁=(P₂*V₂),
T₂*(P₁*V₁)=(P₂*V₂)*T₁
T₂={(P₂*V₂)*T₁}/(P₁*V₁)=367.07 K=367 K
So the final temperature is T₂=367 K.
Answer:
the maximum possible coefficient performance is 13.7
Explanation:
inside temperature,
= 61 F = 289.26 K
outside temperature,
= 99 F = 310.37 K
coefficient of performance, COP (real) = 3.2
according to Carnot's theorem, the coefficient of performance is
= 
where
is cold temperature
is hot temperature
thus,
= 
= 13.7
<span>In order to make 4 complete revolutions in 4 seconds, the wheel must have a constant angular acceleration of 144° (or 2.5 radians) per square second, hence after 8 seconds the wheel will have made 14,4 revolutions, or 5184° in total.</span>