[填空题]
When the resistor R in +z ye *y8h,cstmw t/lb17)jmv (Figz9 ,zz)(li x ju.fn.jd. Below) is $35\Omega$, the high-resistance voltmeter reads 9.7 V. When R is replaced by a $9.0-k\Omega$ resistor, the voltmeter reading drops to 8.1 V. What are the emf and internal resistance of the battery?
r $\approx$ $\Omega$(retain one decimal places)
$\varepsilon$ $\approx$ V(retain one decimal places)
