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2 years ago

Help, please

Physics

1 answer:

kvv77 [185]2 years ago

5 0

Answer:

I am going to answer the questions, according to the numbers of empty spaces to fill,1.electric charge,2.force,3.field lines,4.negatives,5.positive,6.affected,7.attract,8.repel.

Explanation:

if u read it filling in the spaces using this answers,u will understand

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Answer:

Explanation:

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3 years ago

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A particle of mass m= 2.5 kg has velocity of v = 2 i m/s, when it is at the origin (0,0). Determine the z- component of the angu

melomori [17]

Answer:

please read the answer below

Explanation:

The angular momentum is given by

$|\vec{L}|=|\vec{r}\ X \ \vec{p}|=m(rvsin\theta)$

By taking into account the angles between the vectors r and v in each case we obtain:

v=(2,0)

r=(0,1)

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$L=(2.5kg)(1)(2\frac{m}{s})sin90\°=5.0kg\frac{m}{s}$

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$L=(2.5kg)(1)(2\frac{m}{s})sin90\°=5.0kg\frac{m}{s}$

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r and v are parallel

L = 0kgm/s

r=(1,1)

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the same as e):

L = 5kgm/s

r=(-1,-1)

angle = 135°

$L=(2.5kg)(2\frac{m}{s})(\sqrt{2})sin135\°=5kg\frac{m}{s}$

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angle = 135°

the same as g):

L = 5kgm/s

hope this helps!!

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