specific charge is because a physical quantity can be complete only when by giving magnitude only. Here the physical quantity is complete by its magnitude.
vector
Since you can represent that with a single number, it isn't a vector - just a scalar.
Length is a scalar quantity. By definition, a vector quantity has both magnitude (ie. length) and direction. Length does not have direction, so it is not a vector. Length is a scalar quantity. Length is a scalar quantity. yes
scalar
Surface tension is a scalar quantity, as it only has magnitude and no direction. It represents the force per unit length acting parallel to the surface of a liquid.
vector
Charge is a scalar quantity because it only has magnitude and no direction.
Since you can represent that with a single number, it isn't a vector - just a scalar.
A scalar times a vector is a vector.
vector
Electric potential is a scalar quantity since work done and charge are scalars
Average speed is a scalar quantity because it only has magnitude and does not have a specific direction associated with it.
Length is a scalar quantity. By definition, a vector quantity has both magnitude (ie. length) and direction. Length does not have direction, so it is not a vector. Length is a scalar quantity. Length is a scalar quantity. yes
No, electrical charge is a vector quantity because it has both magnitude and direction.
Yes, you can add a scalar to a vector by adding the scalar value to each component of the vector.
Vector quantities have both magnitude and direction, such as velocity and force. Scalar quantities have only magnitude and no specific direction, such as speed and temperature.
A vector has direction, where as a scalar does not. When you add two vectors, it is like you are moving one vector to the end of the other vector, and closing off the triangle with a vector for the third side. That third vector is the addition of the first two vectors. The new vector points in a specific direction, so it cannot be a scalar.