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2 years ago

5

Object A experiences an attractive force of 50 N when it comes close to Object B. If Object A is positively charged, what can yo

u say about Object B?
1. You cannot tell from the information given.
2. Object B is negatively charged.
3. Object B is positively charged.
4. Object B is neutral.

2 answers:

dexar [7]2 years ago

8 0

B object b is negatively charged

denis23 [38]2 years ago

4 0

It is B since they are traveling at the same speed one is positive so the other had to be negative hope this helps;)))))

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2 years ago

The tape in a videotape cassette has a total

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Answer:

1.37 rad/s

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Given:

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Total time of run is, $t = 2.1$ hours

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So, total time of run is, $t= 7560$ s

Inner radius is, $r = 10\ mm = 0.01\ m
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Outer radius is, $R = 47\ mm = 0.047\ m
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Let the same angular speed be $\omega$ .

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So, average radius is, $R_{avg}=\frac{R+r}{2}=\frac{0.047+0.01}{2}=\frac{0.057}{2}=0.0285\ m
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Now, common angular speed is given as the ratio of linear speed and average radius of the tape. So,

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3 years ago

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kolbaska11 [484]

Explanation:

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$v=u+at$

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$v^2-u^2=2a(x-x_o)$

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Hence, this is the required solution.

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3 years ago