The parameter values for a certain armature$-$controlled motor are

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KT $=$ Kb $=0\mathrm{.}3$ N$$m$/$A

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c $=5104$N$$m$$s$/$rad

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Ra $=1\mathrm{.}2$

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The manufacturer$$s data states that the motor$$s maximum speed is $3500$ rpm$,$ and the maximum armature current it can withstand without demagnetizing is $40$ A$.$ Compute the no$-$load speed, the no$-$load current, and the stall torque. Determine whether the motor can be used with an applied voltage of va $=26$V$.$

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The no$-$load speed is rad$/$s$.$

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The no$-$load current is A$.$

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The stall torque is $$N$$m$.$