Develop the linear model of a just a simple pendulum (vertically down) of length l and mass m with an ideal linear torsional spring k at the pivot joint of the pendulum b. draw the root locus of the system for k. (you may assume unity for all other parameters) c. describe the stability of the system in terms of the value k d. draw the block diagram of the system in terms of l e. draw the root locus of the system for the pendulum as you vary l (again, you may assume unity for all parameters)

found in the nucleus

has mass of one amu

temp rises, and expansion

the box does not move because you need to use a force greater than 300 n. you are only using 50 n. it needs to at least be 301 n for the box to move because then it is an unbalanced force and it will move the way that the greater force is pushing it. if you use only 300 n it will be a balanced force and will not move because the force you are exerting on the   box is the same as its force.

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im sorry if i went too in depth, i am going to include a link to a video on khan academy that will explain this.   hope that you like the video and that it explains more in detail to you.

that is the link.

that tool is called an altimeter which measures your altitude which can be used to tell which atmosphere you are currently in, including the stratosphere.

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