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A standing wave on a string that is fixed at both ends has frequency 80.0 Hz. The distance between adjacent antinodes of the sta

OlgaM077 [116]

Answer:

v = 19.2 m/s

Explanation:

In order to find the speed of the string you use the following formula:

$f=\frac{v}{2L}$ (1)

f: frequency of the string = 80.0Hz

v: speed of the wave = ?

L: length of the string = 12.0cm = 0.12m

The length of the string coincides with the wavelength of the wave for the fundamental mode.

Then, you solve for v in the equation (1), and replace the values of the other parameters:

$v=2Lf=2(0.12m)(80.0Hz)=19.2\frac{m}{s}$

The speed of the wave is 19.2 m/s

8 0

4 years ago

Describe the motion of the moon in space to produce the different phases of the moon.

ss7ja [257]

Answer:

Moon slowly moves eastward, rising later each day and passing through its phases:

Explanation:

4 0

3 years ago

Is clara jogging faster during part A of her run or part C? Explain how you know.

rewona [7]

Clara is jogging faster during part C of her run.

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<h3>What is average velocity?</h3>

The average velocity of an object is the change in the object's displacement per change in the time of motion.

From the graph of Clara's motion, the average velocity of Clara in part A is calculated as follows;

$v = \frac{\Delta x}{\Delta t} = \frac{x_2 \ - \ x_1}{t_2 \ - \ t_1} \\\\
v = \frac{800 \ - \ 0}{10 \ - \ 0} \\\\
v = 80 \ m/s$

The average velocity of Clara in part C is calculated as follows;

$v = \frac{1400\ m \ - \ 800 \ m}{25 \ s \ - \ 20 \ s} \\\\
v = \frac{600 \ m}{5 \ s} \\\\
v = 120 \ m/s$

Thus, we can conclude that Clara is jogging faster during part C of her run.

Learn more about average velocity here: brainly.com/question/6504879

3 0

3 years ago

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You hold a bucket in one hand, and in the bucket is a 500 g rock. You swing the bucket so the rock moves in a vertical circle 2.

Blababa [14]

Answer:

3.28 m/s

Explanation:

From the question,

Applying newtons ,

F = mv²/r........................ Equation 1

Where m = mass of the rock, v = speed, r = radius of the circle, F = Centriputal force.

But,

Centriputal force is equal to the weight of the rock

F = mg................. Equation 2

Equate equation 2 into equation 1

mg = mv²/r

Therefore,

v = √gr...................... Equaion 3

Given: r = 2.2/2 = 1.1 m

Constant: g = 9.8 m/s²

Substitute into equation 3

v = √(9.8×1.1)

v = √(10.78)

v = 3.28 m/s

Hence the minimum speed is 3.28 m/s

5 0

3 years ago

What does a steep slope line mean? in science

geniusboy [140]

Answer:

Simply put, slope refers to the steepness of a line. The larger the slope, the steeper the line. Slope is often referred to as 'rise over run' because it is calculated by the change in the vertical (rise) divided by the change in the horizontal (run). ... For example, a high value of slope means a very steep line.

7 0

3 years ago

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