The reason why the snails are dead because the snails lack oxygen for it is a model of closed ecosystem. Another reason to this is that they lack abiotic factors that they need in surviving or as they live for the place that they are living lacks a lot and are not enough for them to last or survive. Lastly, the water could have not been a contributor for them to live for they may not be able to live in a water environment and could only dwell in land.
Answer:
Explanation:
Radius of the ball is 
Initial speed of the ball is 
Initial angular speed of the ball is 
Coefficient of kinetic friction between the ball and the lane
is 
Due to the presence of frictional force, ball moves with
decreasing velocity.
(a)
velocity
in terms of
is

(b)
Ball's linear acceleration is given by

(c)
During sliding, ball's angular acceleration is calculated as

(d)
The time for which the ball slides is calculated from the
equation of motion is

(e)
Distance traveled by the ball is

(for)
The speed of the ball when smooth rolling begins is
