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sergejj [24]
3 years ago
7

What does the speed of sound depend on?

Physics
2 answers:
melamori03 [73]3 years ago
5 0
Assuming it's an ideal material, the answer is A.

The speed of sound depends on the medium that the sound travels through.
bekas [8.4K]3 years ago
4 0

Answer:

Answer is A

Explanation:

You might be interested in
A steel cable has a cross-sectional area 2.54 10-3 m2 and is kept under a tension of 1.01 104 N. The density of steel is 7860 kg
ElenaW [278]

Answer:

The speed is equals to 22.49 m/s

Explanation:

Given Data:

Area = A=2.54*10^-^3m^2\\Force = F = 1.01*10^4N\\density = p = 7860 kg/m^3

Required:

Speed of Traverse wave = c =?

Solution:

As we know that

p=m/V\\\\ p=m/(L*A)\\p*A=m/L

Now the equation for speed of traverse wave is calculated through:

\sqrt \frac{F*L}{m}\\

=\sqrt\frac{F}{m/L} \\\sqrt{} \frac{F}{p*A}

Substituting the values

\sqrt\frac{1.01*10^4}{7860*2.54*10^-^3}  \\

=22.49 m/s

4 0
3 years ago
Describe why drawing a line of best fit is useful.
Amiraneli [1.4K]

Answer:

Cause life

Explanation:

Cause life

8 0
3 years ago
The Pacific Giant Kelp grows at a rate of 18 in/day. How many centimeters per hour is this?
Airida [17]

For this case we must do a conversion. By definition we have to:

1 inch equals 2.54 centimeters

1 day equals 24 hours.

So, we have:18 \frac {in} {day} * \frac {1} {24} \frac {day} {h} * \frac {2.54} {1} \frac {cm} {in} =

Canceling units we have:

\frac {18 * 1 * 2.54} {24 * 1} \frac {cm} {h} =\\\frac {45.72} {24}\frac {cm} {h} =

1,905 \frac {cm} {h}

Answer:

1,905 \frac {cm} {h}

5 0
3 years ago
A string is 1.6 m long. One side of the string is attached to a force sensor and the other side is attached to a ball with a mas
Sergio039 [100]

Complete Question

The diagram for this question is shown on the first uploaded image

Answer:

The distance traveled in horizontal direction is D = 1.38 m

Explanation:

From the question we are told that

      The length of the string is  L = 1.6 \ m

      The mass of the ball is  m = 200 g = \frac{200}{1000} = 0.2 \ kg

       The height of ball is  h = 1.5 \ m

Generally the work energy theorem can be mathematically represented as

               PE = KE

   Where PE is the loss in potential energy which is mathematically represented as

                   PE =mgh

Where h is the difference height of ball at A and at B  which is mathematically represented as

                 h = y_A - y_B

So        PE =mg(y_A - y_B)              

While KE is the gain in kinetic energy which is mathematically represented as

               KE   = \frac{1}{2 } (v_b ^2 - 0)

Where v_b is the velocity of the of the ball

  Therefore we have from above that

                    PE =KE \equiv mg (y_A - y_B) = \frac{1}{2} m (v_b ^2 - 0)

               Making v_b the  subject we have

      v_b = \sqrt{2g (y_A - y_B)}

substituting values

      v_b = \sqrt{2g (1.5 - 0.40)}

     v_b = 4.6 \ m/s

Considering velocity of the ball when it hits the  floor in terms of its vertical and horizontal component we have

         v_x = 4.6 m/s \ while \ v_y = 0 m/s

The time taken to travel  vertically from the point the ball broke loose  can be obtained using the equation of motion

            s = v_y t - \frac{1}{2} g t^2

Where s is distance traveled vertically which given in the diagram as s = -0.4

The negative sign is because it is moving downward

     Substituting values

              -0.4 = 0 -\frac{1}{2}  * 9.8 * t^2

         solving for t we have  

               t = 0.3 \ sec

Now the distance traveled on the horizontal is mathematically evaluated as

           D =  v_b * t

           D =  4.6 * 0.3

           D = 1.38 m

8 0
3 years ago
The elbow is an example of a compound machine found in the human body. true or false
GenaCL600 [577]
The elbow is considered to be a lever, which is a simple machine. Other levers apart from the elbow are jaw, ankle, knee, etc.
This means that it is false that the <span>elbow is an example of a compound machine found in the human body.</span>
4 0
3 years ago
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