3. Millions of years ago, the Earth was not divided into 7 continents. It was only a very large land mass, the scientists named that one land mass “Pangaea”
4. If the tectonic plates are disturbed, they can cause mass earthquakes and tsunamis.
5. The ring of fire is a massive collection of volcanoes under the pacific ocean. They all form the shape of a ring, hence the name.
SORRY, I COULDNT ANSWER THE FIRST TWO QUESTIONS.
Answer:
B = ρ g V_liquid
the thrust is proportional to the density of the liquid
Explanation:
The density of a liquid is defined as the relationship between the mass and the volume of the liquid
ρ = m / V
The upward push of the liquid is given by the principle of Archimedes Archimedes establishes that the push is equal to the weight of the dislodged liquid
B = W_liquid
B = m _liquid g
we substitute mass for density
B = ρ g V_liquid
therefore we see that the thrust is proportional to the density of the liquid
exothermic
Explanation:
negative means it's losing energy
All of the factors that need to be considered when determining an object's terminal velocity are the object's weight and area it presents, as well as air density.
<em>option </em><em>C </em><em>is the correct answer</em>
<h3>What is terminal velocity?</h3>
Terminal velocity is obtained when the speed of a moving object is no longer increasing or decreasing. That is the object's acceleration (or deceleration) is zero.
Mathematically, the formula for terminal velocity is given as;
V = √(2mg)/(ρAC)
where;
- m is the mass of the falling object
- g is the acceleration due to gravity
- ρ is the density of the fluid through which the object is falling
- A is the projected area of the object
- C is the drag coefficient
Thus, the variables to consider in determining terminal velocity of an object incudes the area, density of air, mass, etc.
Learn more about terminal velocity here: brainly.com/question/25905661
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Answer:
Explanation:
Given
Force exerted by machine 
Weight of Block 
Considering inclination to be 
After resolving Forces We get
