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Leya [2.2K]
3 years ago
14

A scientist proposed a hypothesis that burning coal at higher altitudes would release less pollution. The data the scientist col

lected did not support the hypothesis. In what way is the hypothesis still valuable?
Physics
1 answer:
Nadusha1986 [10]3 years ago
6 0

Answer: i really don't know bu i recomened you watch josie b asmr she is the best

Explanation:

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What speed would a proton need to achieve in order to circle Earth 1790 km above the magnetic equator, where the Earth's mag- ne
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Answer:

The velocity is 31.25 m/s and direction is toward west.

Explanation:

Given that,

Distance h= 1790 km = 1.790\times10^{6}\ m

Magnetic field B=4\times10^{-8}\ T

Mass of proton m=1.673\times10^{-21}\ Kg

Radius of earth R =6.38\times10^{6}\ m

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Using formula of magnetic field

Bvq=\dfrac{mv^2}{r}

v=\dfrac{Bqr}{m}

Put the value into the formula

v=\dfrac{4\times10^{-8}\times1.6\times10^{-19}\times8170000}{1.673\times10^{-21}}

v=31.25\ m/s

Hence, The velocity is 31.25 m/s and direction is toward west.

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