0
Yes, a scalar can be a negative number. For instance:
c<x₁,x₂> = <cx₁,cx₂> such that <x₁,x₂> is a vector.
Let c = -1 for instance. Then, we have this vector:
<-x₁,-x₂>
Compared to <x₁,x₂>, <-x₁,-x₂> has negative signs.
In physics and mathematics, if we multiply the vector or something by a negative value scalar, then the direction of the vector is reversed, and the magnitude stays the same. If the magnitude increases/decreases, and the direction of the vector is reversed, then we can multiply the vector by any negative non-1 scalar value.
Add your answer:
Earn +20 pts
What is a matrix and a scalar?
A matrix and a scalar is a matrix. S + M1 = M2. A scalar is a real number whose square is positive. A matrix is an array of numbers, some of which are scalars and others are vectors, square of the number is negative. A matrix can be a quaternion, the sum of a scalars and three vectors.
Is it possible to have a negative speed?
No, Speed is always greater than or equal to zero. However, velocity can be negative, which just means you have a positive speed in the opposite direction! (scalar(number) versus vector).
What number has greater value -345 0r -234?
-234 is greater.. Because in the number line if we go in negative side then the higher the scalar value lower the vector value.
What is scalar field?
In mathematics and physics, a scalar field associates a scalar value to every point in a space. The scalar may either be a mathematical number, or a physical quantity.
Is any number scalar?
Yes.
Can Scalar quantity be Negative Or Zero?
No, scalar quantities cannot be negative because they only have magnitude, not direction. However, scalar quantities can be zero if the magnitude of the quantity is zero.
What is a scalar which is both positive and negative?
Zero is a scalar that is both positive and negative. It holds a value of 0 on the number line and is neither positive nor negative.
How do you find the volume of a sphere if the radius is a negative number?
radius is a scalar quantity, it can not have a negative value.
Can scalar product be negative?
Yes, the scalar product of two vectors can be negative if the angle between them is obtuse (greater than 90 degrees). In this case, the result of the scalar product will be negative.
Why work is negative its is scalar quantity?
A scalar quantity may have positive and negative values - it is simply a real number. But it doesn't have a direction. Think of it as a "vector in one dimension" - whereas the usual vectors have at least 2 dimensions.
What is a matrix and a scalar?
A matrix and a scalar is a matrix. S + M1 = M2. A scalar is a real number whose square is positive. A matrix is an array of numbers, some of which are scalars and others are vectors, square of the number is negative. A matrix can be a quaternion, the sum of a scalars and three vectors.
How will you multiply a vector by positive number?
A positive scalar multiplied by a vector, will only change the vector's magnitude, not the direction. A negative scalar multiplied by the vector will reverse the direction by 180°.
Can a scalar product be a negative quantity?
Yes, a scalar product can be negative if the angle between the two vectors is obtuse (greater than 90 degrees). The scalar product is the dot product of two vectors and is equal to the product of their magnitudes and the cosine of the angle between them. A negative scalar product indicates that the vectors are pointing in opposite directions.
Can a scalar be negative?
Scalars can be negative, and so can a change in a scalar value.Take temperature:You can have a temperature of -10 degrees.If temperature falls from 20 to 5 degress, the change was -15 degree.The negative value of the scalar is a consequence of where you take the "zero" to be.With speed you have to be very careful because speed is the scalar bit of velocity. Velocity with no consideration of direction.
What is the relationship between numbers and vectors discussing the displacement vector t and a negative?
A vector has a direction associated with it. A number (or scalar) does not.
Can a scalar product by a negative quantity?
Yes, a scalar product can be negative if the angle between the two vectors is greater than 90 degrees. In this case, the dot product of the two vectors will be negative.
Is number of passengers on a plane a vector or a scalar?
The number of passengers on a plane is a scalar quantity. Scalars have only magnitude and do not have direction.
