Física, perguntado por Usuário anônimo, 1 ano atrás

Considere Z uma grandeza que depende das grandezas A e B.

a) para A = 25 +- 1 Calcular:

b) para A = 100 +- 3 e B = 45 +- 2 Calcular.

c) para A = 0,100 +- 0,003 -B = 1,00 +- 0,05

HELP!

Soluções para a tarefa

Respondido por Usuário anônimo
1
Bom dia Renata!

Solução!

a) ~~A=25\pm1$\\\\ A ~~varia~~ entre\\\\\ $A=25-1=24$\\\\ $A=25+1=25$\\\\ A~~ varia~~ entre~~ 24~~ a~~ 26\\\\ \boxed{Resposta:z=2}\\\\\\\\
b) $A=100\pm3$  e $B=45\pm2$\\\\\
A=100\pm3$ pode ~~variar ~~97~~a~~103$\\\\\
$B=45\pm2$ pode~~ variar ~~43~~a~~47$\\\\\\
Menor~~ valor~~ da~~ soma$97+43=140$\\\\\
Maior~~ valor~~ da~~ soma$47+103=150$\\\\\\\
$a+b=(100+45)\pm5=145\pm5$\\\\\\
Que~~ pode~~ variar ~~entre\\\\\
$135+145$\\\\\
\boxed{Resposta:z=10} \\\\\\\\\\


c) ~~A=0,100\pm0,003$ ~~~~~ $B=1.00\pm0,05$\\\\\\
$A=0,100\pm0,003$~~ Pode~~ variar ~~$0,097 ~~a~~0,103$\\\\\
$B=1.00\pm0,05$~~Pode~~ variar~~$0,95~~a~~1,05$\\\\\\\
Soma~~ do~~ menor~~ valor~~ $0,95+0,103=1,053$\\\\\
Soma~~ do~~ maior~~ valor~~$0,097+1,05=1,47$\\\\\\\
$(a+b)=(0,100+1,00)\pm0,053$\\\\
$1,1\pm0,053$\\\\
Pode~~ variar~~ entre\\\\
$1,047~~a~~1,153$\\\\\
\boxed{Resposta:z=0,106}

Boa tarde!
Bons estudos!

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