Question

Какая из ниже перечисленных величин не имеет размерности? 1) масса 2) сила 3) скорость 4) коэффициент трения Скалярной величиной является? 1) потенциальная энергия 2) скорость 3) импульс силы 4) ускорение свободного падения

Answer 1

1 вопрос-4, 2 вопрос-1

Answer 2

Dimensionless Quantity:

The dimensionless quantity among the listed options is the coefficient of friction. Unlike mass, force, and velocity, the coefficient of friction does not have any physical units associated with it. It is a ratio that represents the relationship between the force of friction and the normal force between two surfaces.

Scalar Quantity:

The scalar quantity among the listed options is potential energy. Potential energy is a scalar quantity because it only has magnitude and does not have a direction associated with it. Other examples of scalar quantities include temperature, mass, and distance.

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