Answer:b.20.8L
Explanation:
Since pressure is constant we can use the equation V1/T1 = V2/T2
(20/250)=(x/260)
5200=250x
X=20.8
Answer:
Final momentum after a head on collision is -2kgm/
Explanation:
One ball moves to the right and the other moves opposite and momentum is a vector quantity so that considering the direction
Initial momenta are P₁=2x3=6kgm/s P₂=4x(-2)=-8kgm/s
Final momentum is the vector sum of P(final)= 6-8= -2 kgm/s
Answer:
Explanation:
As we know by energy conservation
All its kinetic energy will convert into thermal energy to raise its temperature
now divide both sides by mass of the object
so change in temperature is given as
Answer:
f. 500N
Explanation:
The force exerted by the wagon on the horse is 500N directed in the opposite path .
This is premised on the Newton's third law of motion which states that "action and reaction forces are equal and opposite in direction".
So, as the action force of 500N is used by the horse to drag the wagon, the wagon also exerts an oppositely directed force of 500N on the horse.
This way, the acceleration can continue.
