What is the torque of a force of 12 N with a lever arm of 3.2 meters? ​

What property is a characteristic of a substance that can be observed and does not change the identity of the substance

The plum pudding model of the atom states that ?

An ideal polarizer with its transmission axis rotated 30 degrees to the vertical is placed in a beam of unpolarized light of intensity 10w/m^2. after passing through the polarizer, what is the intensity of the beam? a. 8.7 w/m^2 b. 7.5 w/m^2 c. 5.0 w/m^2 d. 10 w/m^2 e. 2.5 w/m^2