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dem82 [27]
3 years ago
13

I need the letters after the questions

Physics
1 answer:
Elodia [21]3 years ago
6 0

Answer:

b d c a

Explanation:

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The speed of sound in air is 345 m/s. A tuning fork vibrates above the open end of a sound resonance tube. If sound waves have w
anzhelika [568]

Answer:

594.8 Hz

Explanation:

Parameters given:

Speed of sound, v = 345 m/s

Wavelength = 58 cm = 0.58 m

Speed of a wave is given as:

Speed = wavelength * frequency

Therefore:

Frequency = Speed/Wavelength

Frequency = 345/0.58

Frequency = 594.8 Hz

8 0
3 years ago
What gas law looks at the relationship between pressure and temperature of a gas? A) Boyle's Law B) Charles' Law C) Gay Lussac's
Mandarinka [93]

Answer: it should be Boyle’s law

Explanation:

6 0
3 years ago
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Complete this sentence. If the mass of an object blank, the weight of an object will blank
Archy [21]

If the mass of an object doubles, the weight of the object also doubles

If the mass of an object halves, the weight of the object also halves

Explanation:

The mass of an object is an intrinsec property of the object that gives a measure of the "amount of matter" in the object. Mass is indipendent from the location of the object.

On the contrary, weight gives a measure of the force of gravitational attraction felt by the object in a gravitational field. Weight is dependent on the location.

The mass and the weight of an object are related by the following equation:

W=mg

where:

W is the weight of the object

m is its mass

g is the acceleration of gravity

We see from the formula that the weight of an object is directly proportional to its mass. This means the following:

  • If the mass of an object doubles, the weight of the object also doubles
  • If the mass of an object halves, the weight of the object also halves

Learn more about forces and weight:

brainly.com/question/8459017

brainly.com/question/11292757

brainly.com/question/12978926

#LearnwithBrainly

3 0
3 years ago
How was the Periodic Table of Elements developed and how are the elements arranged on it?
victus00 [196]

Answer:

In 1869 Russian chemist Dimitri Mendeleev started the development of the periodic table, arranging chemical elements by atomic mass. He predicted the discovery of other elements, and left spaces open in his periodic table for them.

Explanation:

4 0
3 years ago
...........................
Ugo [173]

Answer: kooi kooi

how r u and thanks for the free points :)

8 0
3 years ago
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