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A 15cm×15cm×15cm box contains 0.011 mol of nitrogen at 20∘C. Part A What is the rate of collisions (collisions/s) on one wall of the box? Express your answer to two significant figures and include the appropriate units.

An object is placed 15cm from a thin lens of focal length +5cm. (a) (3pts) Locate the image of the object (both graphically and numerically). (b) (2pts) Describe the image of the object (real or virtual, inver15cmted or upright, enlarged or shrunk). A second thin lens of focal length +10cm is now placed 20cm away from the first lens on the outgoing ...

Now consider a diverging lens with focal length f=−15cm, producing an upright image that is 5/9 as tall as the object. Part E. Is the image real or virtual? Think about the magnification and how it relates to the sign of s′. Is the image real or virtual? Think about the magnification and how it relates to the sign of .

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Diese Metallklammern können an den Brus15cmtwarzen oder an den Schamlippen befestigt werden, und mit der 90 cm langen Metallkette mit Lederschlaufe kann der/die andere dirigiert werden.

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