Author: Anonymous

Simplify: 8×3-2×3-9{“version”:”1.1″,”math”:”8×3-2×3-9″} Show your steps.

Simplify: 15w-42=24w+12{“version”:”1.1″,”math”:”15w-42=24w+12″} Show your steps. Use a comma to separate multiple solutions. Use ∅{“version”:”1.1″,”math”:”∅”} if there is no solution.

In a darkened room, red light shines on a red cup, a white card, and a blue toy. When illuminated with red light, the red cup will appear [cup], the white card will appear [card], and the blue toy will appear [toy]. It is NOT necessary to show work or reasoning for this problem. 

A thin layer of water is spread on top of a sheet of glass. A light ray in the air is incident on the water 25° from the surface of the water. What is the ray’s angle (in degrees) from the normal after entering the glass? Show your work or explain your reasoning.

In the previous problem, what type of transformer is it? It is NOT necessary to show work or reasoning for this problem. 

Simplify: 24-3i-30+22i{“version”:”1.1″,”math”:”24-3i-30+22i”} Show your steps. Write your answer in standard form.

Simplify: -2835{“version”:”1.1″,”math”:”-2835″} Show your steps.

Simplify: 96w3384w9{“version”:”1.1″,”math”:”96w3384w9″} Assume that w>0{“version”:”1.1″,”math”:”w>0″}. Show your steps.

In the previous question, what is the direction of the net electric force on the 1.0 nC charge at the top of the figure? As long as you showed your work for the previous question, it is NOT necessary to show work or reasoning for this problem. [answer]

  Identical metal spheres are initially charged as shown. First, spheres P and Q are touched together and then separated. Then, spheres Q and R are touched together and then separated. Afterward the charge on sphere R is __________. It is NOT necessary to show work or reasoning for this problem.