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3 years ago

What is biodiversity?

2 answers:

7 0

Biodiversity refers to the huge variety of all organisms present on the Earth, which conform to the natural world.

The term biodiversity can be considered as a contraction of "biological diversity" and it was developed by Dr. Walter G. Rosen in 1985.

Biodiversity includes all biological kingdoms, i.e., Eukaryota (animals, plants, fungi, and protists), Archaea and Bacteria.

Biodiversity can be defined as different values which can be used to measure the genetic variation and variations at organismal (species) and ecosystem levels.

In conclusion, biodiversity refers to the huge variety of all organisms present on the Earth, which conform to the natural world.

Learn more about biodiversity here:

brainly.com/question/11542363

Troyanec [42]3 years ago

5 0

Biodiversity is the biological variety and variability of the life on Earth.

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A plumber uses a spanner on a tap. She puts a force of 200N on the spanner 30cm from the tap. What is the size of the moment?

zaharov [31]

Answer:

60Nm

Explanation:

Given data

Applied force= 200N

length of spanner= 30cm to meter

= 30/100= 0.3m

We know that the formula for the moment is

P=Fl

that is

P= force * length

P= 200*0.3

P= 60Nm

Hence the moment is 60Nm

7 0

3 years ago

Someone please answer please don’t take my points.

Anni [7]

Answer:

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Explanation:

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5 0

3 years ago

a 200 kg crate is pushed horizontally with a force of 700 N. If the coefficient of friction is 0.2 calculate the acceleration of

Crazy boy [7]

Answer:

$a=1.54\ m/s^2$

Explanation:

<u>Net Force</u>

The Second Newton's law states that an object acquires acceleration when an external unbalanced net force is applied to it.

That acceleration is proportional to the net force and inversely proportional to the mass of the object.

It can be expressed with the formula:

$\displaystyle a=\frac{F_n}{m}$

Where

Fn = Net force

m = mass

The m=200 kg crate is pushed horizontally with a force Fa=700 N. The friction force opposes motion and a horizontal net force appears causing the acceleration.

The forces on the vertical direction are in balance since the crate does not accelerate in that direction, thus the weight and the normal force are equal:

N = W = mg

The friction force can be calculated by using the coefficient of friction μ:

$F_r=\mu N$