Monday,Tuesday,W

相关推荐

• 关于亨利定律1803年英国医学家亨利（W.Henry）提出著名的亨利定律：当温度不变时,不发生化学反应的气体在液体中的溶解度与其压力在一定范围内成正比.已知空气在人体血液（37℃）中的溶解度为6.6×10⁻4mol/L.压强增大10倍后,空气在人体血液中的溶解度不会增至……………………（ ）（A）6.6×10⁻3mol/L （B）1.48×10⁻1mol/L （C）1.914×10⁻1g/L （D）6.6×10⁻3NA/L求讲解
• 阅读选择：We have a nice classroom.The windows are big and the wals are white.There's a bigblackboard on the front wall.A big desk is near it.It is for our teachers.There's a map of China and some other pictures on the wall.There are forty small desks and chairs in the room.They are for students.There are sixteen girls and twenty-four boys in our class.There are some flowers on the teacher's desk.They're for our English teacher.She is  a good teacher and w
• “Next Tuesday is going to be a holiday,”says the teache阅读理解“Next Tuesday is going to be a holiday,”says the teacher.“I want you to tell me what you are going to do,Terra.” “I’m going to the movie theater to see a movie,”says Terra.“It is a comedy about a fat professor.My classmates say it’s really funny.” “Anything else are you going to do?”the teacher asks.“Of course I’m going to do my lessons.I’mgoing to study math and physics in the morning.” “Do y
• 计算电热丝长度已知:半径=2.5*10^(-4)m 材质为铁铬铝 电阻率=1.35*10^(-6)电压=220V 功率=800W求长度
• My is going to see a play next tuesday改否定句,疑问句,see a play提问
• 如图是一个电热毯的简化电路图，电源电压为220v，R1是发热电阻，R2是阻值为616Ω的分压电阻，S是控制电热毯工作状态的开关．S转到触点1为断开状态；S转到触点2为低温状态；S转到触点3为高温状态，此时功率为100W．求：（1）当开关S转到触点3时，电热毯的发热电阻R1是多少欧姆？（2）当开关S转到触点2时，通过电路的电流是多少安培？发热电阻R1消耗的功率是多少瓦特？
• 可调电阻3296 W202 和W204 点电阻范围是多少?急用!我想知道的是具体范围........那些引脚通常如何连接？
• 举重运动员在2s时间内,用1200N的力把杠铃举高2m,在这段时间内,运动员做功的功率是 W如果他举起杠铃后又在空中停留了3s,则在这3s内运动员做功的功率是
• 做500w的电热圈需多长电热丝220v的时候
• 标有“0.5k,0.5W”的电阻,k是什么东西?不要告诉我是“克” 应该也不是“开尔文”
• 氨气与哪几类物质反应,原理各是什么
• 我不知道我的数学理解能力怎样提高?