In lab, your instructor generates a standing wave using a thin string of length LLL_1 = 2.10 mm fixed at both ends. You are told that the standing wave is produced by the superposition of traveling and reflected waves, where the incident traveling waves propagate in the +x direction with an amplitude AAA_1 = 2.85 and a speed vxvxv_x1 = 14.5 m/sm/s . The first antinode of the standing wave is a distance of xxx_1 = 35.0 cmcm from the left end of the string, while a light bead is placed a distance of 17.5 cmcm to the right of the first antinode. What is the maximum transverse speed vyvyv_y of the bead? Make sure to use consistent distance units in your calculations.

What color would an object that reflects green and blue light appear to be in white light? a. blue b. cyan c. magenta d. black

Under conditions for which the same room temperature is maintained by a heating or cooling system, it is not uncommon for a person to feel chilled in the winter but comfortable in the summer. provide a plausible explanation for this situation (with supporting calculations) by considering a room whose air temperature is maintained at 20â°c throughout the year, while the walls of the room are nominally at 27â°c and 14â°c in the summer and winter, respectively. the exposed surface of a person in the room may be assumed to be at a temperature of 32â°c throughout the year and to have an emissivity of 0.90. the coefficient associated with heat transfer by natural convection between the person and the room air is approximately 2 w/m2 â‹…â‹… k. what is the ratio of the thermal resistance due to convection to the thermal resistance due to radiation in the summer? what is the ratio of thermal resistances in the winter

Which of the following is an example of motion in two dimensions?