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3 years ago

How do ultrasound waves clean jewellery

Biology

2 answers:

Talja [164]3 years ago

7 0

Answer:

They use ultrasound waves and chemicals combined to create bubbles that "cling" to the foreign particles such as dirt, oil, and unknown substances.

Explanation:

Ultrasonic cleaners are useful for jewelry cleaning and removing tarnish. They use ultrasound waves and chemicals combined to create bubbles that "cling" to the foreign particles such as dirt, oil, and unknown substances. The high frequency waves are sent out and pull the contaminants off the object.

Fiesta28 [93]3 years ago

4 0

Answer:

Ultrasound waves and chemicals are combined to create bubbles that "cling" to foreign particles such as dirt, oil or other unknown substances. The waves are sent out to extract these particles.

Explanation:

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A plate moves 200 m in 10,000 years. What is its rate in cm/year?

schepotkina [342]

Answer:

1m = 100cm

200m = 20000cm

10,000years = 20,000cm

1 year = 20,000/10,000

= 2cm

It's rate is 2cm/year

The answer is option b.

Hope this helps.

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3 years ago

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djverab [1.8K]

Answer:

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Explanation:

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d1i1m1o1n [39]

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4 years ago

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5. Florence Griffith-Joyner set the women's world record for running 200.0m in 1988. At the 1988

Margaret [11]

Answer:

176.8

Explanation:

200/21.34

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3 years ago

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melisa1 [442]

Explanation:

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