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mash [69]
3 years ago
11

A bar magnet cut in half will form a total ofpoles.a)fourb)eightc)two​

Physics
1 answer:
Temka [501]3 years ago
8 0

Answer:

A bar magnet is exactly 2 poles, if you cut it in half, you would have 4 poles.

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A projectile is shot straight up from the earth's surface at a speed of 10,000 km/hr. how high does it go?
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Naturally we assume that 10000 km/hr is initial velocity (same as being shot from a cannon), and no air resistance. With so high a velocity, the effect of diminishing gravity with increasing radius must be taken into account, so you use an energy solution. M is earth mass, r is earth radius. 
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7 0
3 years ago
Marks: 1
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