PLZ hel Suppose you are exploring the Kuiper belt with your telescope and you discover an object you suspect might be a dwarf planet. What would you need to find out about the body to see if it was a dwarf planet?
see if the diameter is 656 km or more, orbits the Asteroid belt, and cleared the neighborhood of other objects
see if the diameter is 656 km or more, orbits the Sun, and cleared the neighborhood of other objects.
see if the diameter is 838 km or more, orbits the Kuiper belt, and cleared the neighborhood of other objects.
see if the diameter is 838 km or more, orbits the Sun, and cleared the neighborhood of other objects.

explanation:

a fuel engine ( known as a gasoline engine in american english )is an internal combustion engine with spark ignition, designed to run on petrol (gasoline) and similar volatile fuels.

i would say the answer is food.

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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.