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elixir [45]
3 years ago
10

Calculate the potential energy of a five KG object sitting at the top of a 2 m ramp

Physics
1 answer:
docker41 [41]3 years ago
5 0
5 x 10 x 200 = 10000
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If grade 7 students learn six periods and if one period is 40 minutes then how many seconds they learn per day
Ludmilka [50]

Answer:

C. 14400

Explanation:

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1 minute = 60 seconds.

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6 0
3 years ago
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Standing waves can ruin the acoustics of a concert hall if there is excessive reflection of the sound waves that the performers
Dmitrij [34]

Answer:

The answer to the questions is;

In terms of standing waves, the listener moves from a location with high amplitude to one with lower amplitude or vibration (anti-node to node)

The distance 4.1 cm is equivalent to λ/4

Explanation:

For standing waves we have is a stationary wave comprising of two opposite direction moving waves that have equal amplitude and frequency, resulting in the superimposition of the waves. As such certain points are fixed along the wave path that is the peaks amplitude of the wave oscillation is constant at a particular point. A node occurring at a point and an anti-node occurring at another fixed point

When the listener moves 4.1 cm he or she has left the anti-node to the node hence the faintness of the sound

The distance from the node to the anti-node is 1/4 wavelength, or 1/4×λ

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6 0
3 years ago
Any help guys? I am stuck on two problems.
Juli2301 [7.4K]

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What are the similarities and differences between chemical and physical properties?
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Physical properties are different from chemical properties of a substance. The main difference between physical and chemical properties is that physical properties can be observed without changing the chemical composition of a substance whereas chemical properties can be observed by changing the chemical composition of a substance.

Explanation:

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Im answering for free points sry

Explanation:

...

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