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Lana71 [14]
2 years ago
12

3. Which of these will remain unchanged when a sound wave travels from the air to water?

Physics
2 answers:
garri49 [273]2 years ago
7 0

Answer:

B. Frequency :)

Explanation:

andre [41]2 years ago
6 0

Answer:frequency

Explanation:

just take the answer

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The great astronomer of ancient times who summarized and improved a system of circles upon circles to explain the complicated mo
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The great astronomer of ancient times who summarized and improved...in a book now called The Almagest) is Ptolemy This is further explained below.

<h3>Who is Ptolemy?</h3>

Generally, Claudius Ptolemy was a Greek mathematician, astronomer, and geographer who lived in the second century CE and is best known for proposing the geocentric model of the cosmos, which was used to explain planetary and stellar movements for the next thousand years.

In conclusion, Ptolemy, the ancient world's preeminent astronomer, compiled and refined a system of circles inside circles to describe the complexities of planetary motion, publishing his work in what is now known as The Almagest.

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6 0
2 years ago
1. A runner has an initial speed of 2 [m/s] and slowly speeds up with a constant acceleration of
zvonat [6]

Answer:

Final Velocity = 4.9 m/s

Explanation:

We are given;. Initial velocity; u = 2 m/s

Constant Acceleration; a = 0.1 m/s²

Distance; s = 100 m

To find the final velocity(v), we will use one of Newton's equations of motion;

v² = u² + 2as

Plugging in the relevant values to give;

v² = 2² + 2(0.1 × 100)

v² = 4 + 20

v² = 24

v = √24

v = 4.9 m/s

5 0
3 years ago
Some snakes have special sensory organs that detect the infrared region of the electromagnetic spectrum. Compared with human vis
Volgvan

Answer: lower frequency and a longer wavelength

7 0
3 years ago
Read 2 more answers
A 100-g toy car is propelled by a compressed spring that starts it moving. the car follows a curved track. what is the final spe
wel

Answer:

0.687 m/s

Explanation:

Initial energy = final energy

1/2 mu² = mgh + 1/2 mv²

1/2 u² = gh + 1/2 v²

Given u = 2.00 m/s, g = 9.8 m/s², and h = 0.180 m:

1/2 (2.00 m/s)² = (9.8 m/s²) (0.180 m) + 1/2 v²

v = 0.687 m/s

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4 years ago
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A seamount is an isolated land mass rising from the ocean floor.<br> a. True<br> b. False
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The answer is A, True.
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3 years ago
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