Can you compare two vectors?
If contents of vectors are equal than it will return true else false. It will compare all the elements in vector, we can not compare the sub sections of vectors using it. It will compare all the elements in vector, by calling operator == on each element.
What has both magnitude and direction?
Vector, in physics, a quantity that has both magnitude and direction. It is typically represented by an arrow whose direction is the same as that of the quantity and whose length is proportional to the quantity’s magnitude. Although a vector has magnitude and direction, it does not have position.
Does energy have magnitude and direction?
The energy, work, and entropy associated with the engines are also scalar quantities. Vectors have magnitude and direction, scalars only have magnitude. Weight is a force which is a vector and has a magnitude and direction. Mass is a scalar.
Is magnitude always positive in physics?
Magnitude is always positive! Magnitude means quantity. When we consider magnitude, like if we consider the magnitude of velocity of an object, we only consider how fast it is moving but not in which direction it is moving. Hence the magnitude always remains positive.
Is magnitude ever negative?
Answer: Magnitude cannot be negative. It is the length of the vector which does not have a direction (positive or negative). The zero vector (vector where all values are 0) has a magnitude of 0, but all other vectors have a positive magnitude.
Does work have magnitude and direction?
Work has only a magnitude but no direction. The formula for work is written as a dot product of force and displacement. Therefore, work is a scalar quantity.
Does work have a direction?
Work is a scalar quantity. which means it does not need direction.
Why is distance a scalar?
Distance is a scalar quantity that refers to “how much ground an object has covered” during its motion. Displacement is a vector quantity that refers to “how far out of place an object is”; it is the object’s overall change in position.
What has the same absolute value as 55?
Both -55 and +55 have the same absolute value: 55.