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Bess [88]
3 years ago
11

Charging a balloon by rubbing it on wool is an example of

Physics
2 answers:
dimaraw [331]3 years ago
4 0
I believe static eletricity
SVETLANKA909090 [29]3 years ago
3 0
Electronic friction ^.^
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insens350 [35]
If an automobile moving at high speed suddenly comes to a stop, you would have a large change in momentum. This relates to Newton's second law in the form F = delta p / delta t, where p is momentum (mv).
You could lessen the effect of the sudden stop on the passengers by changing the average force exerted on them. If you look at Newton's second law again, you can see that given some delta p, you can decrease F by increasing delta t. What this means is that if you increase the length of time over which the change in momentum occurs, you can decrease the average force exerted to obtain that change in momentum. This is the reason why landing on a soft cushion is preferable to landing on a concrete surface. The cushion gives way to any object falling on it while still providing some resistance (you don't stop as abruptly), so while your change in momentum is the same in both cases, you have a larger delta t in the case of the cushion.
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3 years ago
What is ham, I'm totally serious?
Sergeeva-Olga [200]
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While passing a slower car on the highway, you accelerate uniformly from 20.1 m/s to 33.2 m/s in a time of 10.6 s. How far do yo
BaLLatris [955]

Answer:

282 m

Explanation:

Given:

v₀ = 20.1 m/s

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Δx = ½ (33.2 m/s + 20.1 m/s) (10.6 s)

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Long wavelength corresponds to having lower frequency
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4vir4ik [10]
I think this is the answer hope it helps

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