Answer:
+300N-130N=170N
Explanation:
because two forces in opposite direction one take +and the other takes -
First aid suggestions include:
Hold your face under running water for 15 to 20 minutes and allow the water stream to flood into your eyes. Use your fingers to hold your eyelids apart (make sure there is no trace of the chemical on your fingers).
If you wear contact lenses, remove them as soon as possible.
Seek immediate medical advice. Medical staff will need to know what chemical was involved, particularly whether it was acid or alkaline, liquid or powder.
Do not judge the seriousness of your eye injury on the degree of pain. For example, alkali chemicals don’t usually cause significant symptoms, but can seriously damage the eye.
Powder or particulate (granular matter, like wet concrete) chemicals can be particularly damaging since they are more difficult to flush out.
round the corners of the magnet that where it is stronger
hope this helps :)
Answer:
A trough
Explanation:
A trough is an elongated area of relatively low pressure extending from the center of a region of low pressure.
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