3 years ago

The correct symbol for the metric (SI) unit of temperature isA: kB: tC: fD: c

Physics

1 answer:

yulyashka [42]3 years ago

6 0

The correct symbol for measuring temperature is in (K)- for Kelvins. Hope this helped :)

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3 years ago

The vector position of an object is given by r what is the torque acting on the object about the origin when a force f = (−12.5i

attashe74 [19]

Let the vector position of the object in the (x-y) plane be
$\vec{r} = x \hat{i} + y \hat{j}$

The applied force is
$\vec{f} = -12.5 \hat{i}
$

By definition, the applied torque is
$\vec{T} = \vec{r} \times \vec{f} = (x\hat{i} + y\hat{j}) \times (-12.5y \hat{i}) = 12.5\hat{k}$

Answer: $12.5y \, \hat{k}$