Primary clarifiers removing biological nutrients is not true. Primary clarifiers
involves the use of processes such as sedimentation in order to remove
particles floating or other inorganic solids from the waste water.
Biological nutrients such as nitrogen and phosphorus are found in waste
water and removal of these important nutrients for other uses is a part of
waste water management.
The secondary clarifiers are the ones responsible for the removal of
biological nutrients in the waste water through biofiltration etc.
Read more on brainly.com/question/25085634
The truth is both of them are more reactive metal.
Answer:
D 500 N
Explanation:
As the velocity is constant the scale reads the same whether at rest, or at a fixed velocity. The only thing that would make the scale read differently would be a vertical acceleration.
To solve this, we are going to use the formula for the kinetic energy of an object:

where

is the kinetic energy of the object.

is the mass of the object.

is the speed of the object.
We know form our problem that the mass of the horse is 500 kilograms, so

; we also know that the speed of the horse is 5 meter/second, so

. Lets replace those values in our formula to find

:





J
We can conclude that the kinetic energy of the horse is
6250 Joules.