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el oxígeno, como uno de los componentes del aire constituye un 21% de su volumen y es necesario para la combustión y la respiración de los seres vivos. la razón por la que es administrado a las personas que vuelan a grandes altitudes es:
a. porque hay una mala ventilación debido a los contaminantes del aire que afectan el tracto respiratorio.
b. para que se facilite la respiración y se produzca la liberación de energía en el aire.
c. para compensar la debilidad de la persona que se expone a altitudes elevadas.
d. la baja concentración del gas no permite la respiración normal

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.

the only real purpose of sputnik 1 was to beat the us into space. we were getting close to launching a useful satellite, explorer 1 - which launched on january 31, 1958. the ussr had to beat that, so they launched sputnik 1 on october 4, 19

we have been given a quadratic function and we need to restrict the domain such that it becomes a one to one function.

we know that vertex of this quadratic function occurs at (5,2).

further, we know that range of this function is .

if we restrict the domain of this function to either or , it will become one to one function.

let us know find its inverse.

upon interchanging x and y, we get:

let us now solve this function for y.

hence, the inverse function would be if we restrict the domain of original function to and the inverse function would be if we restrict the domain to .