Selina drops a golf ball down a deep well. the ball falls with only the force of gravity acting on it. without any air resistance, as the golf ball falls into the well, its speed is:

a. constant
b. increasing
c. decreasing
d. directional

   A. constant

Without any air resistance, as the golf ball falls into the well, its speed is constant.

Explanation:

Given that when the ball is released,there is no air resistance acting on ball. So the ball is freely falling.

The only force acting on the freely falling body is the gravitational force pulling the body towards the centre of the earth.Here the only acceleration acting on the body is the acceleration due to gravity.

The acceleration due to gravity is . so through out the journey of the ball,the acceleration is . So as the acceleration is constant, the speed is also constant.

> b takes place in the gas phase in an isothermal tubular reactor. the feed is one mole of a per one mole of c, an inert. the entering temperature and pressure are 427°c and 10 atm, respectively. the gas constant r = 0.08206 atm · l/mol · k.

answer: they produce more slow than unicellular organisms.