Answer:

Explanation:
The radius of Earth is 
The density of an object is given by :

The density of Erth is, d = 5515 kg/m³
Where
m is the mass of the Earth
So,

Put all the values,

So, the mass of the Earth is equal to
.
Answer:
c. turn downward
Explanation:
From the information given:
To find the tendency of the sander;
We need to apply the right-hand rule torque; whereby we consider the direction of the flywheel, the direction at which the torque is acting, and the movement of the sander toward the right.
Since the flywheel of the sander is in counterclockwise movement, hence the torque direction will be outward placing on the wall. However, provided that the movement of the sander is toward the right, then there exists an opposite force that turns downward which showcases the tendency in the sander is downward.
'Controlled Breeding', or selective breeding, is in genetics where people make animals reproduce to make favorable traits appear more often.
T<span>he </span>similarities between compounds<span> and </span>mixtures<span> are that they are both made up of two or more </span>elements<span> and that they could both be separated and then mixed with different </span>elements<span> to make a new </span>mixture<span> and </span>compound<span>.
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