A Physics provincial Exame problem.A 45 kg steel ball is projected vertically with an initial speed of 280 m/s.While the is rising 8.5x10^5 J of heat energy are produced due to air friction.What is the maxiumum height reached by the ball?顺便说一

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A Physics provincial Exame problem.A 45 kg steel ball is projected vertically with an initial speed of 280 m/s.While the is rising 8.5x10^5 J of heat energy are produced due to air friction.What is the maxiumum height reached by the ball?顺便说一

A Physics provincial Exame problem.A 45 kg steel ball is projected vertically with an initial speed of 280 m/s.While the is rising 8.5x10^5 J of heat energy are produced due to air friction.What is the maxiumum height reached by the ball?顺便说一
A Physics provincial Exame problem.
A 45 kg steel ball is projected vertically with an initial speed of 280 m/s.While the is rising 8.5x10^5 J of heat energy are produced due to air friction.What is the maxiumum height reached by the ball?
顺便说一句 正确答案是2100m

A Physics provincial Exame problem.A 45 kg steel ball is projected vertically with an initial speed of 280 m/s.While the is rising 8.5x10^5 J of heat energy are produced due to air friction.What is the maxiumum height reached by the ball?顺便说一
根据能力守恒就可以了:
开始的动能1/2*mv^2=热能+势能mgh
1/2*45*280^2=8.5*10^5+45*9.8h
得到结果为h=2072.56m

I will have Communication 11,Physics 11 final exam and English 10 provincial exam.求检查语法错误I will have Communication 11,Physics 11 final exam and English 10 provincial exam.That is my first time take the provincial exam.I feel a little bi provincial A Physics provincial Exame problem.A 45 kg steel ball is projected vertically with an initial speed of 280 m/s.While the is rising 8.5x10^5 J of heat energy are produced due to air friction.What is the maxiumum height reached by the ball?顺便说一 Bruce___(思考)a physics problem now. Every F afternoon,we have a physics cEvery F afternoon,we have a physics class 英语翻译under it ,a Common Drug Review recommends to provincial lists which new drugs should be included.翻译0575 英语翻译CONTRACT SUBJECT TO PROVINCIAL LABOUR AND EMPLOYMENT LEGISLATION AND APPLICABLE COLLECTIVE AGREEMENTSTHE EMPLOYER is obliged to abide by the standards set out in the relevant provincial labor standards act and,if applicable.the terms of a Physics ____ more difficult than maths A is B are Many players believe table tennis is a physics game 翻译 翻译:We are going to ( ) a new subject,physics. I have lost my interested ( ) physics.I have lost my interested ( ) physics.A .in B .on C .at D .for chemistry is the science of substances ___the science of energy .a and is physics b or is physics c and physics d or physics is 选什么 为什么 谢啦 英语翻译under it ,a Common Drug Review recommends to provincial lists which new drugs should be included.翻译05751.翻译2.分析结构 翻译“physics” physics意思 physics(翻译) I have a lot of problems____ physics A.for B.from C.with D.on The boy is having a physics class now(用twice a day改句子)