Answer:
Option C
Explanation:
Hydrocarbon + Oxygen = Carbon dioxide + Water
is example of combustion reaction
Conduction. Because they are connected as they tranfer energy
Answer : The correct option is, (B) 279.2 Kpa
Solution : Given,
Initial pressure of gas = 475 Kpa
Initial volume of gas = 
Final volume of gas = 
Initial temperature of gas = 290 K
Final temperature of gas = 277 K
Using ideal gas equation :
Formula used :
where,
= initial pressure of gas
= final pressure of gas
= initial volume of gas
= final volume of gas
= initial temperature of gas
= final temperature of gas
Now put all the given values in the above formula, we get the final pressure of the gas.
Therefore, the absolute pressure of the gas after expansion is, 279.2 Kpa
Answer:
Instantaneous velocity at the red light is 0 m/s.
Instantaneous velocity at another point is 18 m/s towards north.
Explanation:
Instantaneous velocity is the velocity of a body at any given moment of time.
It's the current speed and direction in which it acts.
When the bus is at the red light, it is not in motion at that point. So, the instantaneous velocity of the bus is 0 m/s at that moment of time.
Again, at another point, the bus is moving with constant speed of 18 m/s, so the instantaneous velocity is also 18 m/s but with a specified direction as velocity is a vector quantity.
So, the instantaneous velocity when the bus is moving with constant speed is 18 m/s towards north.
So it can be easily absorbed into the blood steam.
