Using the conservation of momentumwhere momentum = mass x velocity
so the let x be the initial velocity of the ball B
(30 kg) (-10 m/s) + (10 kg) (x) = (30 kg) (30 m/s) + ( 10 kg) (-10 m/s)
-300 + 10 x = 900 - 10010x = 900 - 100 + 30010x = 1100x = 1100 / 10x = 110 m/s
A material that lets light pass through freely is a prisim
Answer:I believe it is D I might be wrong
Explanation:
Answer: 0.471 m/s
Explanation:
We are given the followin equation:
(1)
Where:
is the Reynolds Number, which is adimensional and indicates if the flow is laminar or turbulent
When we have a laminar flow
When we have a turbulent flow
When the flow is in the transition region
is the diameter of the pipe. If the pipe ha a radius its diameter is
is the average speed of the fluid
is the density of the fluid
is the viscosity of the fluid
Isolating :
(2)
Solving for
(3)
Finally: