You are on an interstellar mission from the Earth to the 8.7 light-years distant star Sirius. Your spaceship can travel with 70% the speed of light and has a cylindrical shape with a diameter of

6 m at the front surface and a length of 25 m. You have to cross the interstellar medium with an

approximated density of 1 hydrogen atom/m3

.

(a) Calculate the time it takes your spaceship to reach Sirius.

(b) Determine the mass of interstellar gas that collides with your spaceship during the mission.

Note: Use 1.673 × 10−27 kg as proton mass.

(a) Calculate the time it takes your spaceship to reach Sirius.

(b) Determine the mass of interstellar gas that collides with your spaceship during the mission

Explanation:

1.673 × 10−27 kg as proton mass

6 m at the front surface and a length of 25 m

cross the interstellar medium with an approximated density of 1 hydrogen atom/m3

spaceship can travel with 70% the speed of light

speed of the light: 299,792,458 m/s

like poles repel so keep pushing north to north and repels funny to see this

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.