|A snow maker at a resort pumps 130 kg of lake water per minuteand sprays it into the air above a ski run. The water droplets freeze in theair and fall to the ground, forming a layer of snow. If all the water pumpedinto the air turns to snow, and the snow cools to the ambient air temper-ature of – 7.0 °C, how much heat does the snow-making process releaseeach minute? Assume that the temperature of the lake water is 12.0 °C,and use 2.00 x 10° J/(kg · C°) for the specific heat capacity of snow.*66.

Given data: The mass of the water pumped by snow maker per minute is m=130 kg. The ambient air…

Answered: |A snow maker at a resort pumps 130 kg…

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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A granite ball of radius 9.00 m and emissivity 0.046 is heated to 150°C. (a) Convert the given temperature to Kelvin. (Enter your answer to at least the nearest Kelvin.) K (b) What is the surface area of the ball? m2 (c) If the ambient temperature is 25.0°C, what net power does the ball radiate? W
A granite ball of radius 4.00 m and emissivity 0.042 is heated to 150°C. (a) Convert the given temperature to Kelvin. (Enter your answer to at least the nearest Kelvin.) K(b) What is the surface area of the ball? m2(c) If the ambient temperature is 25.0°C, what net power does the ball radiate? W
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When you jog, most of the food energy you burn above your basal metabolic rate (BMR) ends up as internal energy that would raise your body temperature if it were not eliminated. The evaporation of perspiration is the primary mechanism for eliminating this energy. Determine the amount of water you lose to evaporation when running for 58 minutes at a rate that uses 400 kcal/h above your BMR. (That amount is often considered to be the "maximum fat-burning" energy output. The latent heat of vaporization of water at room temperature is 2.5 106 J/kg.) A) _________ kgB)The metabolism of 1 gram of fat generates approximately 8.63 kcal of energy and produces approximately 1 gram of water. (The hydrogen atoms in the fat molecule are transferred to oxygen to form water.) What fraction of your need for water will be provided by fat metabolism?______________ %
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