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harkovskaia [24]
3 years ago
10

What is the anwser to impossible quiz question 66

Physics
2 answers:
Vinvika [58]3 years ago
4 0
The ! at the end of the word world. click that
77julia77 [94]3 years ago
4 0

Answer:

The ! at the end of the word world.

Explanation:

Click it.

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¿Por qué los mensajes llegan en forma inmediata de un celular a otro?
KATRIN_1 [288]

Porque el internet ayuda a la rapidez del mensaje.

7 0
3 years ago
Joanna wants to determine the speed of sound in xenon. When she plays a tone with a frequency of 440 Hz, the resulting sound wav
iVinArrow [24]

The speed of the sound in the xenon is 178 m/s. And the right option is b 178 m/s

<h3 /><h3>What is speed?</h3>

Speed can be defined as the ratio of the total distance traveled by a body to the total time taken.

To calculate the speed of the sound in the xenon, we use the formula below.

Formula:

  • v = λf............. Equation 1

Where:

  • v = Speed of the sound in xenon
  • f = Frequency
  • λ = Wavelength.

From the question,

Given:

  • f = 440 Hz
  • λ = 40.4 cm = 0.404 m

Substitute the values above into equation 1

  • v = 440(0.404)
  • v = 177.76 m/s.
  • v ≈ 178 m/s

Hence, The speed of the sound in the xenon is 178 m/s. And the right option is b 178 m/s

Learn more about speed here: brainly.com/question/4931057

7 0
2 years ago
A student drops a 1.5 kg rock off of a 4.0 m tall bridge. The speed of the rock just before it hits the water below is 6 m/s. Ho
olga nikolaevna [1]

Answer:

Energy due to air resistance = 31.8 Joules

Explanation:

According to the law of conservation of energy, energy can neither be created nor destroyed but can be transformed from one form to another

Kinetic Energy + Energy due to air resistance = Potential energy..........(1)

If there is no energy loss due to air resistance, potential energy = kinetic energy

mass, m = 1.5 kg

height, h = 4.0 m

speed, v = 6 m/s

Kinetic energy = 0.5 mv²

Kinetic energy = 0.5 * 1.5 * 6²

Kinetic energy = 27 Joules

Potential Energy = mgh

Potential energy = 1.5 * 9.8 * 4

Potential energy = 58.8 Joules

From equation (1)

27 + Energy due to air resistance = 58.8

Energy due to air resistance = 58.8 - 27

Energy due to air resistance = 31.8 Joules

8 0
3 years ago
Read 2 more answers
Which of the following is NOT an exercise myth?
Blababa [14]
It is <span>C. Low to moderate level of exertion can be sustained over long periods of time </span>
7 0
3 years ago
Write four factors that affect the speed of sound<br>in a<br>gas medium.​
wolverine [178]

Answer:

<em>(a) Effect of pressure :</em>

<em>(a) Effect of pressure :(b) Effect of temperature :</em>

<em>(a) Effect of pressure :(b) Effect of temperature :(c) Effect of density :</em>

<em>(a) Effect of pressure :(b) Effect of temperature :(c) Effect of density :(d) Effect of moisture (humidity):</em>

<em>(a) Effect of pressure :(b) Effect of temperature :(c) Effect of density :(d) Effect of moisture (humidity):(e) Effect of wind:</em>

Explanation:

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3 years ago
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