Answer:
Explanation:
All but kg can be vector quantities.
m/s^2 is acceleration. in the formula F = m*a the acceleration has direction and that means that force has direction. If you place an object on a table, there are 2 vectors in operation: one tends to move down (gravity) and one points up (the table top). The object would like to move but cannot, because the forces are equal but in opposite directions.
meters can be a vector or the unit of a vector. It is called displacement when it has direction.
km / hr. Since meters can be a vector, so can km. This is a velocity (or can be). When the direction is not specified, km/hr is a speed. It might describe the movement of a snail. hours really have no direction. hours can't go up, or down or left or right, the way km can. So hours add nothing to the question.
kg are units of mass. Mass really has no direction associated with it. Don't confuse mass and weight. Weight does have a direction, but mass does not.
Based on the excerpt from the contemporary composer Aulis Sallinen, the melody is played by a trombone: False.
<h3>What is an inference?</h3>
An inference refers to a process through which a reader or listener can deduce the meaning or message (information) such as melody, that's associated with an event or musical composition, especially through induction.
Based on the excerpt from the contemporary composer Aulis Sallinen, we can infer and logically deduce that the melody is played by a flute, rather than a trombone.
Read more on flute here: brainly.com/question/1173149
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We can automatically rule out answer A, as short stories are not exclusively about the writers life.
That leaves B. C. and D.
B is incorrect as it is too vague in nature.
D is also incorrect as not all short stories are true or non fiction.
And so by process of elimination, the answer is C.
Answer:
x = 21
Explanation:
The two remaining angles must add to 90 degrees since a triangle adds to 180
3x+6 +x = 90
4x+6 =90
4x = 90-6
4x = 84
Divide by 4
4x/4 = 84/4
x = 21
The oxidation number if eah of the elements is as follows;
- Oxidation number of Mn is + 7 on the right hand side and +4 on the right hand side
- Oxidation number if hydrogen is +1 on both sides
- The oxidation number of oxygen is -2 on both sides
- The oxidation number of sulfur is -2 on the lefthand side and zero on the right hand side.
<h3>What is a redox reaction?</h3>
A redox reaction is one in which there is a change in the oxidation number of the reactants from left to right.
Let us now consider the oxidation number of each element from left to right;
- Oxidation number of Mn is + 7 on the right hand side and +4 on the right hand side
- Oxidation number if hydrogen is +1 on both sides
- The oxidation number of oxygen is -2 on both sides
- The oxidation number of sulfur is -2 on the lefthand side and zero on the right hand side.
Learn more about oxidation number: brainly.com/question/15167411?
