Answer:
It is most likely the word elliptical.
Explanation:
Usually the term <em>elliptical </em>refers to the oval-like shape of a substance or path of an object. The question states, "Planets in our solar system do not revolve around the sun in perfect circles. Their orbits are more like ovals." Because the planets orbit around the sun in an oval-like path, those orbits can be described as <em>elliptical. </em>Scientists also normally use this word to describe the same thing; Therefore, your answer is elliptical.
Answer:
Explanation:
Let's begin by explaining that the relation between the Celsius scale and Kelvin scale is:
This means the absolute zero point of the Kelvin scale is
Keeping this in mind, we have the freezing point and boling point of Methane as:
Freezing point:
Boiling point:
According to this, there is a linear relation between the methane scale () and the Kelvin scale in the form:
(1)
Where:
is the temperature in Kelvin
is the temperature in degrees Methane
Firstly, we need to find the value of and with the two given points ( and ):
When and :
(2)
When and :
(3)
Now we have the linear equation:
(4)
Isolating :
(5)
Evaluating for :
(6)
Finally:
This means
Answer:
The net force is zero, so the acceleration is zero
Explanation:
Newton's second law states that the acceleration of an object is proportional to the net force applied to it, according to the equation:
(1)
where
is the net force on the object
m is the mass of the object
a is its acceleration
In this problem, we have a sled acted upon two forces, . So the net force on the sled is
(2)
however, we are told that the two forces are equal in magnitude but in opposite directions, so
So, eq.(2) becomes
and so eq.(1) becomes
which means
so the acceleration of the sled is zero, and if the sled was at rest, it will not move.
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