The answer to the problem b.
Answer:
420 L
Explanation:
Applying Boyle's Law,
PV = P'V'.................... Equation 1
Where P = Initial pressure, P' = Final pressure, V = Initial volume, V' = Final volume.
make V' the subject of the equation
V' = PV/P'.................... Equation 2
From the question,
Given: P = 720 mmHg, V = 350 L, P' = 600 mmHg
Substitute these values into equation 2
V' = (720×350)/600
V' = 252000/600
V' = 420 L
Answer:
14 N
Explanation:
The tension in the second string is puling both the masses of 20 kg and 8 kg with acceleration of 0.5 m s⁻²
So tension in the second string = total mass x acceleration
= 28 x .5 = 14 N . Ans..
Acceleration is constant, so we can use the following kinematic equation and Newton's second law.
where 
and 
are initial/final velocities, 
is acceleration, 
is displacment, 
is force, and 
is mass. Since the objects are coming to rest, the acceleration opposes the direction of motion and is negative.
Solve for .
Compute the displacements of both objects.
Then both objects are displaced by the same amount.
