rationing on two days interval at affected areas. Although water rationing can help to conserve water in the dams‚ it could not solve drought problems forever. Severe drought brings greatest impact on agricultural activities because water scarcity account for 70% of potential yield loses worldwide (Boyer‚ 1982). Biotechnology could be a permanent solution for this problem with the development of drought-tolerant crops. Plant genes that are related to stress tolerance have been isolated initially from Arabidopsis
Premium Water Drought
Week 6 Homework Solutions Question 3 Explain how built-in (or automatic) stabilizers work. What are the differences between proportional‚ progressive‚ and regressive tax systems as they relate to an economy’s built-in stability? Answer In a phrase‚ “net tax revenues vary directly with GDP.” When GDP is rising‚ so are tax collections‚ both income taxes and sales taxes. At the same time‚ government payouts—transfer payments such as unemployment compensation and welfare—are decreasing. Since net
Premium Public finance Tax Progressive tax
11 Balanced Three-Phase Circuits Assessment Problems AP 11.1 Make a sketch: We know VAN and wish to find VBC . To do this‚ write a KVL equation to find VAB ‚ and use the known phase angle relationship between VAB and VBC to find VBC . VAB = VAN + VNB = VAN − VBN Since VAN ‚ VBN ‚ and VCN form a balanced set‚ and VAN = 240/ − 30◦ V‚ and the phase sequence is positive‚ VBN = |VAN |//VAN − 120◦ = 240/ − 30◦ − 120◦ = 240/ − 150◦ V Then‚ VAB = VAN − VBN = (240/ − 30◦ ) − (240/ − 150◦ ) = 415.46/0◦ V
Premium Pearson Education Upper Saddle River, New Jersey Copyright
Chapter 6 Review Questions 1) Which of the following must a firm in a market economy do today to succeed? A) Produce the goods and services that consumers want at a lower cost than consumers themselves can produce. B) Organize the factors of production into a functioning‚ efficient unit. C) Have access to sufficient funds. D) Market firms today must do all of these things. 2) Organizing a successful firm in a market economy has become ________ over the last century. A) legally impossible
Premium Corporation Stock Stock market
reference to examples‚ assess the degree the economic development of a country affects planning and management in urban areas (40) The planning and management of urban areas covers several different issues present in all areas such as waste‚ sustainability and transport. These issues come about as a result of urbanisation which originates from an increase in economic development. However certain issues will be more prevalent in certain areas of more or less economic development than others. When planning
Premium Sustainability Recycling
Solutions to ecological problems Ecology is a very important and urgent issue today. This word means the relation of plants and living creatures to each other and to their environment. Nowadays‚ this relation is damaged. Our environment suffers from ecological problems‚such as: air and water pollution‚ rainforest destruction‚ extinction of plants and animals.If there is a problem – there should be some solutions as well. To begin with‚ one of the biggest ecological problem is water pollution
Free Environmentalism Pollution Environment
CHAPTER 21 Accounting for Leases ASSIGNMENT CLASSIFICATION TABLE (BY TOPIC) Topics Questions Brief Exercises Exercises Problems Concepts for Analysis *1. Rationale for leasing. 1‚ 2‚ 4 1‚ 2 *2. Lessees; classification of leases; accounting by lessees. 3‚ 5‚ 7‚ 8‚ 14 1‚ 2‚ 3‚ 4‚ 5 1‚ 2‚ 3‚ 5‚ 7‚ 8‚ 11‚ 12‚ 13‚ 14 1‚ 2‚ 3‚ 4‚ 6‚ 7‚ 8‚ 9‚ 11‚ 12‚ 14‚ 15‚ 16 1‚ 2‚ 3‚ 4‚ 5‚ 6 *3. Disclosure of leases. 19 2‚ 4‚ 5‚ 7‚ 8 2‚ 3‚ 5 *4. Lessors;
Premium Lease Depreciation Generally Accepted Accounting Principles
every nation still imposes tariffs and other barriers to restrict such trade. The causes of trade barriers base on either economic or political reasons. A country has to protect some domestic industries and therefore they must impose either tariffs or non-tariff barriers on imports. Those industries can be strategic or infant ones‚ either of which can cause major problems to the development of the country if they are hurt by foreign industries. If there is a dumping issue – the selling of goods
Premium International trade
9 Sinusoidal Steady State Analysis Assessment Problems AP 9.1 [a] V = 170/−40◦ V [b] 10 sin(1000t + 20◦ ) = 10 cos(1000t − 70◦ ) . ·. I = 10/−70◦ A [c] I = 5/36.87◦ + 10/−53.13◦ = 4 + j3 + 6 − j8 = 10 − j5 = 11.18/−26.57◦ A [d] sin(20‚000πt + 30◦ ) = cos(20‚000πt − 60◦ ) Thus‚ V = 300/45◦ − 100/−60◦ = 212.13 + j212.13 − (50 − j86.60) = 162.13 + j298.73 = 339.90/61.51◦ mV AP 9.2 [a] v = 18.6 cos(ωt − 54◦ ) V [b] I = 20/45◦ − 50/ − 30◦ = 14.14 + j14.14 − 43.3 + j25 = −29.16 + j39.14 = 48.81/126
Premium Pearson Education Upper Saddle River, New Jersey Copyright
Series Assessment Problems AP 16.1 av = 1 T ak = 2 T = 0 Vm dt + 2T /3 0 4Vm 3kω0 T = bk = 2T /3 2 T 2T /3 0 4Vm 3kω0 T 1 T Vm 3 T 2T /3 Vm cos kω0 t dt + sin 4kπ 3 = Vm sin kω0 t dt + 1 − cos 4kπ 3 7 dt = Vm = 7π V 9 Vm cos kω0 t dt 3 T 2T /3 6 4kπ sin k 3 Vm sin kω0 t dt 3 T 2T /3 = 6 k 1 − cos 4kπ 3 AP 16.2 [a] av = 7π = 21.99 V [b] a1 = −5.196 b1 = 9 a2 = 2.598 a3 = 0 a4 = −1.299 a5 = 1.039 b2 = 4.5 b3 = 0 b5 = 1.8 b4 = 2.25 2π = 50 rad/s T [d] f3 = 3f0 =
Premium Pearson Education Upper Saddle River, New Jersey Copyright