Someone places a chocolate bar near a working radar set that is used to locate ships and airplanes. which best describes what is likely to happen to the chocolate bar? it changes color as it absorbs visible light from the radar set. it softens and melts as it absorbs microwaves from the radar set. it becomes radioactive after it absorbs gamma rays from the radar set. it begins to fluoresce after it absorbs ultraviolet light from the radar set.

Total solidification times of three casting geometries are to be compared: a sphere, a cylinder, in which the length-to-diameter ration - 1.0, and a cube. volume = 1000 cm^3 for all three shhapes, and the same casting alloy is used. a) determine the solidification times of each geometry b) based on the results of part (a), which geometric element would make the best riser? c) if the mold constant = 3.5 min/cm^2 in chvorinov's rule, compute the total solidification time for each casting.

Awater slide of length l has a vertical drop of h. abby's mass is m. an average friction force of magnitude f opposes her motion. she starts down the slide at initial speed vi. use work-energy ideas to develop an expression for her speed at the bottom of the slide. then evaluate your result using unit analysis and limiting case analysis. express your answer in terms of the variables h, m, l, vi, f and appropriate constants. vf v f

Sort the images based on whether there's a force of attraction or repulsion between the magnets shown. attraction repulsion