3 years ago

HELP WILL GIVE BRAINLIEST

Physics

1 answer:

RideAnS [48]3 years ago

7 0

Answer:

Reindeer

Explanation:

High traction to walk on ice

Woolly fur to keep warm

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The rms speed is calculated as

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A 7 kg object attached to a horizontal string moves with constant speed in a circle on a frictionless horizontal surface. The ki

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Answer:

Explanation:

Given

mass of object $m=7 kg$

kinetic Energy $k=36\ J$

Tension in string $T=326\ N$

mass is moving in a horizontal circle so tension is providing the centripetal acceleration

therefore $T=\frac{mv^2}{r}----1$

where r=radius of circle

kinetic energy of particle $k=\frac{1}{2}mv^2----2$

divide 1 and 2 we get

$\frac{T}{k}=\frac{\frac{mv^2}{r}}{\frac{1}{2}mv^2}$

$\frac{T}{k}=\frac{2}{r}$

$r=\frac{2k}{T}=\frac{2\times 36}{326}$

$r=0.2208\ m$

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The compass is a small bar magnet that’s free to spin. Based on what you observed, is the coil of wire with current passing thro

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Answer:

yes, it is a magnet.

Explanation:

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