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geniusboy [140]
3 years ago
11

An amusement park designer wants his swing to have a centripetal

Physics
1 answer:
Valentin [98]3 years ago
4 0

Answer:

15.2 m

Explanation:

a = v² / r

19 m/s² = (17 m/s)² / r

r = 15.2 m

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An electric current of 0.25 A passes through a circuit that has a resistance of
Katen [24]

Answer:

The voltage is V = 37.5 [V]

Explanation:

To solve this problem we must use ohm's law which tells us that the voltage is equal to the product of the current by the resistance.

V = I*R

where:

V = voltage [Volt]

I = current = 0.25[amp]

R = resistance = 150 [ohm]

V = 0.25*150 = 37.5 [V]

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3 years ago
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Question 25
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Answer:

o The result of a chemical change is a different  composition; in a physical change, the composition  remains the same.

Explanation:

In a chemical change, new kinds of matter are produced although the atoms are the same.

For physical changes, no new kinds of matter formed. Only the state of substances changes.

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3 years ago
Mercury is commonly used in thermometer give reasons​
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Answer:

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<h3>BECAUSE MERCURY IS USED BECAUSE IT is the only liquid available in room temperature </h3>

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Why would an atomic nucleus give off a particle?
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A sinusoidal transverse wave travels along a long, stretched string. The amplitude of this wave is 0.08190.0819 m, its frequency
Anvisha [2.4K]

Answer:

The shortest transverse distance between a maximum and a minimum of the wave is 0.1638 m.

Explanation:

Given that,

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d=2A

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d=2\times0.08190

d=0.1638\ m

Hence, The shortest transverse distance between a maximum and a minimum of the wave is 0.1638 m.

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