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2 years ago

Waves are often caused by

Physics

2 answers:

padilas [110]2 years ago

8 0

Answer:

vibrating objects.

I think

zlopas [31]2 years ago

7 0

Explanation:

my dear wave can cause potential energy or wind

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Two tuning forks produce sounds of wavelengths of 3.4 meters and 3.3 meters.

KengaRu [80]

Answer:

Explanation:

wavelength, λ = 3.4 m

wavelength, λ' = 3.3 m

Speed, v = 340 m/s

f = v / λ = 340 / 3.4 = 100 Hz

f' = v / λ' = 340 / 3.3 = 103.03 Hz

Frequency of beat, n = f' - f = 103.03 - 100 = 3.03 Hz

5 0

2 years ago

What kind of object are the light rays interacting with in the model below?

Ymorist [56]

Answer:

Concave lens

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5 0

2 years ago

In the figure below (Figure 1), the upper ball is released from rest, collides with the stationary lower ball, and sticks to it.

Georgia [21]

(a) The frequency of the motion after the collision is 0.71 Hz.

(b) The maximum angular displacement of the motion after the collision is 16.3⁰.

<h3>Speed of the 2.2 kg ball when it collides with 2.7 kg ball</h3>

The speed of the 2.2 kg ball which was initially 10 cm higher that 2.7 kg ball is calculated as follows;

K.E = P.E

¹/₂mv² = mgh

v² = 2gh

v = √2gh

v = √(2 x 9.8 x 0.1)

v = 1.4 m/s

<h3>Final speed of both balls after collision</h3>

The final speed of both balls after the collision is determined from the principle of conservation of linear momentum.

Pi = Pf

m₁v₁ + m₂v₂ = vf(m₁ + m₂)

2.2(1.4) + 2.7(0) = vf(2.2 + 2.7)

3.08 = 4.9vf

vf = 3.08/4.9

vf = 0.63 m/s

<h3>Maximum displacement of the balls after the collision</h3>

P.E = K.E

$mgh_f = \frac{1}{2} mv_f^2\\\\h_f = \frac{v_f^2}{2g} \\\\h_f = \frac{(0.63)^2}{2(9.8)} \\\\h_f = 0.02 \ m$

<h3>Maximum angular displacement</h3>

The maximum angular displacement of the balls after the collision is calculated as follows;

$cos \theta = \frac{L - h_f}{L} \\\\cos\theta = \frac{0.5 - 0.02}{0.5} \\\\cos\theta = 0.96\\\\\theta = cos^{-1}(0.96)\\\\\theta = 16.3 \ ^0$

<h3>Frequency of the motion</h3>

$f = \frac{1}{2\pi} \sqrt{\frac{g}{L} } \\\\f = \frac{1}{2\pi } \sqrt{\frac{9.8}{0.5} } \\\\f = 0.71 \ Hz$

Learn more about maximum angular displacement here: brainly.com/question/13665036

4 0

2 years ago

Draw a free-body diagram to show all forces acting on the object.

andreyandreev [35.5K]

Answer:

Draw a free-body diagram to show all forces acting on the object.

4 0

2 years ago

Determine whether the given value is a statistic or a parameter. A homeowner measured the voltage supplied to his home on a rand

stealth61 [152]

Answer:

C. The given value is a statistic for the yearyear because the data collected represent a samplesample.

Explanation:

A parameter is a numerical measurement of a population while a statistic is a numerical measurement of a sample. Statistics use assumptions to represent relations among variables and parameters should meet requirements and present more objective data. In this case, the voltage value found is the mean of a 34 days sample and, therefore, the given value is a statistic of the daily voltage for the year.

8 0

2 years ago