3 years ago

Help on #2 will give brainliest and 40 points

1 answer:

8 0

Answer:

and that's according to ma views

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iragen [17]

A
The delta indicates a difference or change. such as delta y is the change in y position

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4 years ago

allsm [11]

They send out waves differently and cannot be heard easily

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3 years ago

denis23 [38]

Your answer is B i know this because i took this last week

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4 years ago

sasho [114]

Answer:

Velocity will be $v=1.291\times 10^8m/sec$

Explanation:

We have given magnetic field B = 0.00005 T

Mass m = 238 U

We know that $1u=1.66\times 10^{-27}kg$

So 238 U $=238\times 1.66\times 10^{-27}=395.08\times 10^{-27}kg$

Radius $=R+1.44=6378+1.44=6379.44KM$

We know that magnetic force is given by

$F=qvB$ which is equal to the centripetal force

So $qvB=\frac{mv^2}{r}$

$1.6\times 10^{-19}\times v\times 0.00005=\frac{395.08\times 10^{-27}v^2}{6379.44}$

$v=1.291\times 10^8m/sec$

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3 years ago

kifflom [539]

Answer:

It is refraction

Explanation:

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3 years ago