Which of the following TV ads for Shine, a toothpaste brand, is likely to hold more appeal for a consumer who is right-brain dominant than for a consumer who is left-brain dominant? a. An ad which talks about the advantages of a fluoride-free toothpaste b. An ad where an elderly couple talks about how their teeth are still very strong because of Shine c. An ad where a dentist clinically explains why Shine is the best toothpaste d. An ad which shows the Shine toothpaste being used by a dentist to clean magnified dentures e. An ad where a family sings the reason why Shine is their favorite toothpaste

Which statement best describes who the period and frequency of electromagnetic was change between gamma rays and microwaves? a) the period and frequency stay the same. b) the period increases and the frequency decreases. c) the period decreases and the frequency increases. d) the period increases and the frequency increases.

Which describes an image that can be produced by a concave lens? the image is real and smaller than the object. the image is virtual and larger than the object. the image is virtual and smaller than the object. the image is real and larger than the object.

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