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A bar of mass and negligible height is lying horizontally across and perpendicular to a pair of counter rotating rollers as shown in the figure. The rollers are separated by a distance . There is a coefficient of kinetic friction between each roller and t...

A hydrometer is a device that measures the density of a liquid. The one shown in the figure has a cylindrical bulb of radius attached to a cylindrical stem of radius and length . When placed in a liquid, the device floats as shown in the figure with a len...

th a hole (14 points possible) A cylindrical bucket has a small hole at the bottom. The water exiting the hole has velocity . What is the depth, , of the water in the bucket?

Buoyant Force of a Balloon (9 points possible) Helium balloons are used regularly in scientific research. A typical balloon would reach an altitude of 35.0 km with an air density of kg/m . At this altitude the helium in the balloon would expand to 540000....

how can i compare my classmates in a real life situations about factoring?

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tehta alpha=?

please the number solutions?

I=1/3*m*L*L?

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