IN WHICH DIRECTION DOES AN ELECTRIC CURRENT FLOW?No abstract is available for this article.doi:10.1111/j.1949-8594.1931.tb16451.xL. E. McallisterJohn Wiley & Sons, Ltd.School Science & Mathematics
根据原文第1段The energy which the sun radiates(辐射) goes in every direction. But only a minute part of it falls on the earth可知,太阳向四面八方散发出能量,但是只有一小部分属于地球。短语a minute part of在句中意为“一小部分”,a minute可意为“一点点”,B选项符合题意,故选B。【小题2】...
How does an accelerometer work? Quartz flexure, such as Q-Flex™ accelerometers work by using a proof mass, made of amorphous quartz, that can move or “flex” in the presence of acceleration. The picture shows the flexure motion in the absence and presence of acceleration. However, the ...
The weather in Texas may have cooled since the recent extreme heat, but the temperature will be high at the State Board of Education meeting in Austin this month as officials debate how climate change is taught in Texas schools. Pat Hardy, who sympathized with views of the energy sector, is...
Lakes are crucial for ecosystems1, greenhouse gas emissions2 and water resources3, yet their surface-extent dynamics, particularly seasonality, remain poorly understood at continental to global scales owing to limitations in satellite observations4,5. Although previous studies have focused on long-term ...
Kersman is a managing director and head of PIMCO in Asia-Pacific. He is responsible for setting the strategic direction for the region and leading a team of professionals to deliver investment solutions and service to Asia-Pacific clients. He has 24 years of investment and financial services exp...
Rural residential building Energy Indoor thermal environment Hot summer and cold winter zone China 1. Introduction As the global population increases, so does the global demand for energy. In China, building energy consumption accounts for 46.7% of the total society's energy consumption. With the ...
in recent decades over $2 billion has been spent on climate change lobbying in the US, of which, the groups supporting renewable energy and environmental protection have been outspent by a ratio of more than 10:1 by those supporting transportation, electrical utilities and the fossil fuel indust...
1 because people saw him threatening to move the team to San Antonio. Fans booed him when the Saints played at LSU's Tiger Stadium, and he threw a temper tantrum over the abuse. With the city filled with rancid refrigerators, a meme emerged: People spray-painted them with the words: "...
According to Le Chatelier's Principle, which way will an equilibrium shift (left or right) when heat is added if the reaction in the forward direction is exothermic? The reaction BaSO4 (s) <-> Ba+2(aq) + SO4-2(aq) with a d...