The noise level generated by domestic air conditioner ranges between
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Q: 2ABCD
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Q: A sound wave has a frequency of 795 Hz in air and a wavelength of 0.45 m. What is the temperature of…
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Q: If the sound is travelling at 287m/s, what is the temperature of the area??
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- 1. The driver of a truck parked on a mountain road give the air horn a quick blast toward a rock cliff 0.590 km away. If he hears the echo 3.55 s later, what is the approximate air temperature at this mountain elevation? O cci16 c 6 cci16 co ceil6 ceileA pass by train noise level of 79 dB was measured at 50 feet from the tracks. What will you anticipate the noise level from that same train on a residential community located 200 feet from the tracksIm clueless
- The rate at which a resting person converts food energy is called one’s basal metabolic rate (BMR). Assume that the resulting internal energy leaves a person’s body by radiation and convection of dry air. When you jog, most of the food energy you burn above your BMR becomes internalenergy that would raise your body temperature if it were not eliminated. Assume that evaporation of perspiration is the mechanism for eliminating this energy. Suppose a person is jogging for “maximum fat burning,” converting food energy at the rate 400 kcal/h above his BMR, and putting out energy by work at the rate 60.0 W. Assume that the heat of evaporation of water at body temperature is equal to its heat of vaporization at 100°C. (a) Determine the hourly rate at which water must evaporate from his skin. (b) When you metabolize fat, the hydrogen atoms in the fat molecule are transferred to oxygen to form water. Assume that metabolism of 1.00 g of fat generates 9.00 kcal of energy and produces 1.00 g of…When it rains, water vapor in the air condenses into liquid water, and energy is released. (a) How much energy is released when 0.0318 m (1.25 inch) of rain falls over an area of 2.59×106 m² (one square mile)? (b) If the average energy needed to heat one home for a year is 1.50x1011 J, how many homes could be heated for a year with the energy determined in part (a)? (a) Number (b) Number i i Units Units >An observer measured an interval of 10 s between seeing a lightning flash and hearing thunder. If the temperature of the air was 20°C how far away was the source of air