Physics, 31.07.2021 07:00 hardwick744
Select the correct text in the passage. Jared is reading an article about the heavy rains that have fallen recently in his town. But he can't separate the facts from the opinions. Which sentences in the article state facts? It's that time of year again when the days are wet and cool. A. The rainy season is the best season. B. Rain makes up part of Earth's water cycle. C. Water evaporates from streams, lakes, and oceans, then condensation and precipitation occur in the form of rain. D .Precipitation in the form of rain is better than snow. E. Snow this time of year makes people gloomy. Rain is a great boon to local farmers. F It helps the crops grow​
Answers: 1
Physics, 21.06.2019 23:00
We want to calculate the total metabolic heat generated by a singing canary taking into account heat transfer by radiation, convection and exhaling air. the air temperature is 20 oc, canary’s body internal and surface temperature is 33oc, external body surface convective heat transfer coefficient is 25.2 w/m2 .k, temperature difference between the inhaled and exhaled air is 4.3 oc, the ventilation rate is 0.74 cc of air per second, specific heat of air is 1.0066 kj/kg.k and density of air is 1.16 kg/m3 . assume the canary’s body to be a cylinder with 7 cm diameter and 9 cm length, and heat exchange is from the side as well as the top and bottom of cylinder. calculate 1) the net rate of heat lost by radiation, assuming heat gained by the bird through radiation from the surroundings is 11.5 w; 2) rate of heat transferred by convection to the surrounding air; 3) rate of heat transferred in the exhaling air without considering any internal evaporation; 4) total metabolic power.
Answers: 2
Physics, 22.06.2019 20:30
This is a form of winter precipitation. it is frozen precipitation falling as ice pellets. snowflakes melt into raindrops as they pass through a thin layer of warmer air. the raindrops then refreeze into particles of ice when they fall into a layer of sub-freezing air near the surface of the earth. this precipitation is called a) hail. b) rain. c) sleet. d) snow.
Answers: 1
Physics, 22.06.2019 21:00
Ais a machine that makes work easier when a single force is applied. a simple machine b compound machine c endangered machine d complex machine
Answers: 2
Select the correct text in the passage. Jared is reading an article about the heavy rains that have...
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