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arsen [322]
3 years ago
9

PLS HURRY AND ANSWER THIS IM GIVING 100 POINTS AND ILL MARK BRAINLIEST

Physics
1 answer:
dolphi86 [110]3 years ago
3 0

Infrasound versus Ultrasound: Infrasound is sound that is beneath the lower furthest reaches of human hearing, under 20 Hz, and ultrasound is over the maximum furthest reaches of human hearing, over 20,000 Hz. People use infrasound - this repeat run for checking seismic quakes and volcanoes, charting rock and oil improvements under the earth. Infrasound is depicted by an ability to get around blocks with little dispersing.

For example, a couple of animals, for instance, whales, elephants and giraffes pass on using infrasound over huge distances. Heavy slides, volcanoes, seismic quakes, ocean waves, water falls and meteors produce infrasonic waves. Indicative ultrasound, moreover called sonography or definite clinical sonography, is an imaging method that uses high-repeat sound waves to make pictures of designs inside your body. The photos can give significant information to diagnosing and treating a variety of infirmities and conditions.

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. The penalties for a person's second DUI conviction include completion of __________ hours of DUI school.
Ghella [55]

Answer:

21

Explanation:

brainliest please

3 0
3 years ago
Please help me with a speech.The topic of my speech is Passion.​
Vikentia [17]

Answer:

Explanation:

Passion

For me, standing on the summit of Mt Everest was the result of following a process. The process of mountaineering. I love mountaineering. I am passionate about it. I love the months of planning for an expedition, the months of sweating and training to prepare my body physically. The meticulous preparation of my equipment. Most of all I love the huge mental challenge I have to overcome before each climb to confront my own fear. All these reasons are why I climb, they are why I climbed Mt Everest and that is why I continue to climb.

Passion is an enormously powerful force. It gives us the strength to get through hard times and setbacks. It gives us strength to overcome our fears, to ignore what other people think of us, to be disciplined and make sacrifices in pursuit of our dreams. Passionate people do not want to take shortcuts – they consider that ‘learning the process’ is an important part of the journey.

In mountaineering it’s easy to spot those who are not passionate about the process. They want to stand on top of the mountain but they are not really interested in the process of climbing the mountain. I feel for these people. Success without hard work is a hollow, empty feeling. They never last long in the sport.

Just as in life, successful mountaineers are the ones who are passionate. They are not there just to stand on the summit. Their passion gives them the energy to work the hardest, fight the longest, and in the words of Winston Churchill “never, never. never give-up”.

3 0
3 years ago
**100 POINTS**
lawyer [7]

Answer:

B

Explanation:

6 0
3 years ago
Help me :DD i will mark u brainlist and u will get points and a thank u
Whitepunk [10]

Answer:

  • Energy flow is the flow of energy through living things within an ecosystem. All living organisms can be organized into producers and consumers, and those producers and consumers can further be organized into a food chain. Each of the levels within the food chain is a trophic level.

  • Radiation is energy that comes from a source and travels through space at the speed of light

  • Molecules must collide with sufficient energy, known as the activation energy, so that chemical bonds can break.
4 0
3 years ago
A 1.50 cm high diamond ring is placed 20.0 cm from a concave mirror with radius of curvature 30.00 cm. The magnification is ____
Rama09 [41]

Answer:

Magnification, m = -0.42

Explanation:

It is given that,

Height of diamond ring, h = 1.5 cm

Object distance, u = -20 cm

Radius of curvature of concave mirror, R = 30 cm

Focal length of mirror, f = R/2 = -15 cm (focal length is negative for concave mirror)

Using mirror's formula :

\dfrac{1}{f}=\dfrac{1}{u}+\dfrac{1}{v}, f = focal length of the mirror

\dfrac{1}{v}=\dfrac{1}{f}+\dfrac{1}{u}

\dfrac{1}{v}=\dfrac{1}{-15}+\dfrac{1}{-20}

v = -8.57 cm

The magnification of a mirror is given by,

m=\dfrac{-v}{u}

m=\dfrac{-(-8.57)}{-20}

m = -0.42

So, the magnification of the concave mirror is 0.42. Thew negative sign shows that the image is inverted.

5 0
4 years ago
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