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2 years ago

The graph shows the amplitude of a passing wave over time in seconds (s).

Physics

2 answers:

FinnZ [79.3K]2 years ago

5 0

Answer:

Option B. 0.3 Hz

Explanation:

From the question given above, the following data were obtained:

Period (T) = 3 s

Frequency (f) =?

Frequency is related to the period according to the following equation:

Frequency (f) = 1 / period (T)

f = 1/T

With the above formula, we can obtain the frequency wave as illustrated below:

Period (T) = 3 s

Frequency (f) =?

f = 1/T

f = 1/3

f = 0.3 Hz

Therefore, the frequency of the wave is 0.3 Hz

Gelneren [198K]2 years ago

5 0

Answer:

The answer is 0.3 Hz

Explanation:

I took AP EX quiz.

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If energy is going into a system, but not being converted into kinetic energy, it will be converted into potential energy. This

7nadin3 [17]

Answer:

1. Plateau where the temperature stays constant

2. Melting

3. Boiling points of the substance

Explanation:

The relationship between kinetic energy and temperature is given as follows;

$\overline E = \dfrac{3}{2} \times \dfrac{R}{N_A} \times T$

Where;

$\overline E$ = The average kinetic energy of the atom

R = The universal gas constant

$N_A$ = Avogadro's number

T = The temperature in Kelvin

Therefore, the kinetic energy increases as the temperature increases, however when the energy is not being converted into kinetic energy, the energy is stored as internal potential energy in the melted or evaporated state of the substance

Therefore, we have;

If energy is going into a system, but not being converted into kinetic energy, it will be converted into potential energy. This will be represented by a 1. plateau where the temperature stays constant on a heating curve, which occur at the 2. melting and 3. boiling points of the substance.

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3 years ago

A venturi is constructed of a 10.0 cm pipe with a 2.0 cm diameter throat. Water pressure in the pipe is twice atmospheric pressu

postnew [5]

Answer:

$P_t=5066250.0696\ Pa=50\ atm$

Explanation:

Given:

diameter of pipe, $d=0.1\ m$

diameter of throat, $d_t=0.02\ m$

velocity of flow, $v=0.4\ m.s^{-1}$

Pressure in the pipe is twice the atmospheric pressure:

$P=2\times 101325=202650\ Pa$

Now the force of flow of water:

$F=P\times A$

now we find cross sectional area of the pipe:

$A=\frac{\pi.d^2}{4}$

$A=\pi \times\frac{0.1}{4}$

$A=0.007854\ m^2$

Therefore,

$F=202650\times 0.007854$

$F=1591.6094\ N$

Now the area at throat:

$A_t=\frac{\pi.d_t^2}{4}$

$A_t=\frac{\pi\times 0.02^2}{4}$

$A_t=0.000314\ m^2$

Therefore pressure at throat:

$P_t=\frac{F}{A_t}$

$P_t=\frac{1591.6094}{0.000314}$

$P_t=5066250.0696\ Pa=50\ atm$

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2 years ago

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B. A safe landing on the station on earth
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3 years ago

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3 years ago

A 5.00 kg mass feels a gravitational

GarryVolchara [31]

Answer: Both masses are 0.285 m apart

Explanation:

According to the law of Universal Gravitation:

$F=G\frac{(m_{1})(m_{2})}{d^2}$