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Lilit [14]
3 years ago
10

Which effect is created when two sound waves that are close in pitch

Physics
1 answer:
Temka [501]3 years ago
5 0

Answer:

C. Beats

Explanation:

When waves are interfering with each other, the sound is louder in some places and softer in others. As a result, we hear pulses or beats in the sound.

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What is the formula for calcium chloride
Naddik [55]

The correct answer is - CaCl2

The calcium chloride is a salt, an inorganic compound. Its formula is CaCl2, with Ca being calcium, Cl being chloride, and the number 2 representing the number of chloride molecules.

The calcium chloride is a white colored crystalline solid when it is at room temperature, and it is highly soluble in water, acetone, and acetic acid. It has a molar mass of 110.98 g/mol, density of 2.15 g/cm³, and melting point at 772 °C.

6 0
3 years ago
Read 2 more answers
What does the left y-axis show?
vivado [14]

Answer:

The correct option is;

a- sea surface temperature anomaly, in degrees Celsius

Explanation:

From the diagram related to the question we have two graphs super imposed of Sea surface temperature anomaly, in degrees Celsius and cholera incidence anomaly (%) both plotted against time in years.

On the left the y-axis represents the sea surface temperature anomaly while on the right, the y-axis represents the cholera incidence anomaly (%).

The display of the graph shows the sea surface temperature anomaly in blue.

6 0
3 years ago
An object is placed 50cm in front of a concave mirror of radius 60cm. How far from the mirror is the image?
Shkiper50 [21]

Answer:To explian the exact calculation of this pruduct we must not try!

3 0
3 years ago
Your bedroom has a rectangular shape, and you want to measure its area. You use a tape that is precise to 0.001 and find that th
Anarel [89]

Answer:

(a) 17.0 m^{2}

(b) 31.4 m^{2}

Explanation:

(a)

The result obtained by multiplying two values which are having different precision has to express in the precision of the least precise number. So among the given values 4.79 is the least precise value; hence round off the result to 3 significant figures. For a rectangular room, area is a product of length and width, here, l is length and b is width/breadth

Area=lb=4.79*3.547=16.9901\approx 17.0 m^{2}

(b)

Following the same rules mentioned in part a of the question

For circular shaped bedroom, area A={\pi (d/2)^{2}}

A=\pi\times (6.32/2)^{2}=31.37 m^{2}\approx 31.4 m^{2}

The diameter of the circular room is 6.32, this is the least precise value used to calculate the area, so round off the final result to 3 significant figures

5 0
3 years ago
A 5.73 kg bowling ball moves in a straight line at 1.6 m/s.
Schach [20]

Answer: 2546.66 m/s

Explanation:

We have the following data:

m_{1}=5.73 kg is the mass of the bowling ball

V_{1}=1.6m/s is the velocity of the bowling ball

m_{2}=3.6 g \frac{1 kg}{1000 g}=0.0036 kg is the mass of the ping-pong ball

V_{2} is the velocity of the ping-pong ball

Now, the momentum p_{1} of the bowling ball is:

p_{1}=m_{1}V_{1} (1)

p_{1}=(5.73 kg)(1.6m/s)

p_{1}=9.168 kg m/s (2)

And the momentum p_{2} of the ping-pong ball is:

p_{2}=m_{2}V_{2} (3)

If the momentum of the bowling ball is equal to the momentum of the ping-pong ball:

p_{1}=p_{2} (4)

m_{1}V_{1}=m_{2}V_{2} (5)

Isolating V_{2}:

V_{2}=\frac{m_{1}V_{1}}{m_{2}} (6)

V_{2}=\frac{9.168 kg m/s}{0.0036 kg} (7)

Finally:

V_{2}=2546.66 m/s

8 0
3 years ago
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