A block of mass 0.5kg is pulled to the right with an applied force 3N at an angle 30 degrees above horizontal as shown. Ignoring friction, the acceleration of the block is... A. 1.8
B. 3
C. 5.2
D. 6

Unpolarized light whose intensity is 1.19 w/ is incident on a polarizer. (a) what is the intensity of the light leaving the polarizer? (b) if the analyzer is set at an angle of = 41.0∘ with respect to the polarizer, what is the intensity of the light that reaches the photocell?

When a light bulb shines, it gives off light energy and energy. a. heat b. potential c. chemical d. electrical

Smallest intensity of a stimulus that you can detect 50 percent of the time is