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Alika [10]
3 years ago
12

Table 1 contains data about two completely ionised samples of pure boron.

Physics
1 answer:
WITCHER [35]3 years ago
7 0

Answer:

I think it would most likely be 2... but not so sureee

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A 2kg object is tied to the end of a cord and whirled in a horizontal circle of radius 2 m. If the body makes three complete rev
Travka [436]

Answer:

a) 37.70 m/s

b)710.6 m/s²

Explanation:

Given that ;

Mass of object = 2 kg

Radius of the motion = 2m

Frequency of motion = 3 rev/s

The formula to apply is;

v= 2πrf   where v is linear speed

v = 2×π×2×3 =12π = 37.70 m/s

Centripetal acceleration is given as;

a= 4×π²×r×f²  

a= 4×π²×2×3²

a=710.6 m/s²

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I believe all of these would be known as specific phobias.

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Pani-rosa [81]

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3 years ago
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Scilla [17]
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3 years ago
Consider a 7 m stretched string that is clamped at both ends. What is the longest wavelength standing wave that it can support (
user100 [1]

A vibrating stretched string has nodes or fixed points at each end. The string will vibrate in its fundamental frequency with just one anti node in the middle - this gives half a wave.

l=\frac{\lambda }{2}

Rearranging for the wavelength

\lambda=2l

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Therefore the longest wavelength standing wave that it can support is 14m

7 0
3 years ago
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