ErickN7597

05.12.2019 • 

Physics

This applet shows the results of releasing a frictionless block and a rolling disk with equal masses from the top of identical inclined planes.

this applet shows the same situation, but it also shows, through bar graphs that change with time, the way that the energy is transformed as the box and the disk go down the inclined plane.

assume that the box and disk each have mass m , the top of the incline is at height h , and the angle between the incline and the ground is θ (i.e., the incline is at an angle θ above the horizontal). also, let the radius of the disk be r

how much sooner does the box reach the bottom of the incline than the disk? express your answer in terms of some or all of the variables m , h , θ , and r , as well as the acceleration due to gravity g.

Ответ:

ggdvj9gggsc

14.07.2021

Physics

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Machines capable of manufacturing exactly the same component time after time,
with exactly the resistance you want, would be very expensive, and so would the
products they turn out.  A resistor would cost a dollar instead of a few pennies.
The machine itself, and its output, work within tolerances.

The cheapest mass-produced resistors are guaranteed to be within 20% above
or below the resistance marked on them.  And you know what ?  For most bench-
work and prototyping, that's usually close enough.

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