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3 years ago

PHYSICAL SCIENCE HELP PLEASE

Physics

1 answer:

eduard3 years ago

8 0

The acid becomes nutralised

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Read this statement: Biotechnology uses primary clarifiers for biological nutrient removal.

olga nikolaevna [1]

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

6 0

2 years ago

Read 2 more answers

Choose the more reactive metal. Al or Zn

horsena [70]

The truth is both of them are more reactive metal.

8 0

4 years ago

Read 2 more answers

Question 12

Natali5045456 [20]

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.

8 0

3 years ago

A 0.5 kg turntable with a radius of 15 cm is rotating 78 times per minute.

alexandr1967 [171]

Answer:

Explanation:

8 0

3 years ago

A 500-kilogram horse runs at 5 meters/second. The horse’s kinetic energy is <br> joules.

kari74 [83]

To solve this, we are going to use the formula for the kinetic energy of an object: $E_{k}= \frac{1}{2} mv^2$
where
$E_{k}$ is the kinetic energy of the object.
$m$ is the mass of the object.
$v$ is the speed of the object.

We know form our problem that the mass of the horse is 500 kilograms, so $m=500$ ; we also know that the speed of the horse is 5 meter/second, so $m=5$ . Lets replace those values in our formula to find $E_{k}$ :
$E_{k}= \frac{1}{2} mv^2$
$E_{k}= \frac{1}{2} (500)(5)^2$
$E_{k}= \frac{1}{2} (500)(25)$
$E_{k}= \frac{12500}{2}$
$E_{k}=6250$ J

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

7 0

4 years ago

Read 2 more answers