E=0.17 B L1=0.5 м α=30 L2=1.6 м B=?
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a=g*sinα
v=√(2*L2*a)=√(2*L2*g*sinα)
E=B*L1*v
B=E/(L1*√(2*L2*g*sinα))=0.17/(0.5*√(2*1.6*10*0.5))=0.085 Тл (85 мТл)
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Verified answer
E=0.17 B L1=0.5 м α=30 L2=1.6 м B=?
===
a=g*sinα
v=√(2*L2*a)=√(2*L2*g*sinα)
E=B*L1*v
B=E/(L1*√(2*L2*g*sinα))=0.17/(0.5*√(2*1.6*10*0.5))=0.085 Тл (85 мТл)
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