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3 years ago

What is the potential energy of a puppy that weighs 18 N istting in a high chair 2 m high?

Physics

1 answer:

kykrilka [37]3 years ago

6 0

Answer:

Potential energy =mass* acceleration due to gravity * height

mass*acceleration due to gravity =weight

hence potential energy of the puppy= weight * height

=18*2

=36 joule

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2 years ago

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a tire has a tread pattern with a crevice every 4.00 cm. each crevice makes a single vibration as the tire moves. what is the fr

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the frequency (in hz) of these vibrations if the car moves at 24.2 m/s is 605 HZ .

Calculation :

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= 605 HZ

Frequency describes the number of waves passing through a particular location in a particular time. So if the wave takes 1/2 second to travel, the frequency is 2 per second. If it takes 1/100th of an hour, the frequency is 100 per hour.

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1 year ago

The sound level of one person talking at a certain distance from you is 61 dB. If she is joined by 5 more friends, and all of th

Lady_Fox [76]

Answer:

Explanation:

For sound level in decibel scale the relation is

dB = 10 log I / I₀ where I₀ = 10⁻¹² and I is intensity of sound whose decibel scale is to be calculated .

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61 = 10 log I / 10⁻¹²

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2 years ago

Please answer any of these thanks !

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2). If the instrument is played louder, the amplitude of the waves increases.
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horizontal size of each wave doesn't change.

If the instrument is played at a higher pitch, then the waves become shorter,
because 'pitch' is directly related to the frequency of the waves, and higher
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If the instrument plays louder and at higher pitch, the waves on the scope
become taller and there are more of them across the screen.

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Frequency = 300,000,000 meters per second / 1,500 meters = 200,000 per second.

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I didn't think anybody broadcasts at 200 kHz, so I looked up BBC Radio 4
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3 years ago

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navik [9.2K]

Answer:yayyyy

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