What is the symptoms of a concussion

People may experience:

Headache: can be acute or persistent

Whole body: blackout, fatigue, or poor balance

Cognitive: amnesia, disorientation, or mental confusion

Sleep: sleep disturbances or sleepiness

Gastrointestinal: nausea or vomiting

Also common: irritability, mild depression, ringing in the ears, or sensitivity to light

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headache, dizziness, disorientation, and nausea.

Explanation:

A concussion is any sudden impact to the head or acceleration or deceleration without impact. A concussion disrupts normal brain activity and can be dangerous. The symptoms include headache, dizziness, disorientation, and nausea.

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.