Problem5 (5 pts): the heating of home to increase its temperature must be modeled as an open system, because expansion of the household air at constant pressure results in leakage of air to outdoors. assuming that the molar properties of air leaving the home are the same as those of air in the home, show that energy and mole balances yield the following differential equation: dn du where q is the rate of heat transfer to the air in the home, and t is the time. quantities p, v, n, and u refer to the air in the home.

the first american roller coaster was the mauch chunk switchback railway, built in the mountains of pennsylvania in the mid-1800s. the track, originally built to send coal to a railway, was reconfigured as a "scenic tour."

the answer is a)

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you go to your settings preference and in the end youll see sth that says "i want to delete my acc" click on it and u'll acc will be deleted but u have to wait.

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.

hope this !

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.