1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
sasho [114]
3 years ago
7

What properties does a loud, shrill whistle have? a.) high amplitude, high frequency

Physics
1 answer:
marysya [2.9K]3 years ago
4 0

Answer:

a.) high amplitude, high frequency

Explanation:

Frequency and amplitude are properties of sound. Varying these properties changes how people perceive sound.

While hearing sound of a particular frequency we call it pitch i.e., the perception of a frequency of sound.

High pitch means high frequency and high frequency is perceived to have a shrill sound.

The loudness of a sound is measured by the intensity of sound i.e., the energy the sound possesses per unit area. As the amplitude increases the intensity increases. So, a loud sound will have higher density.

Hence, the loud shrill whistle will have high frequency and high amplitude.

You might be interested in
What is the current through an electric heater with a resistance of 38  when the potential difference is 240 V?
Zinaida [17]

\bf{ \underline{Given:- }}

\sf•  \: Resistance \:  (R)  \: = 38 \:  Ω

• \sf \:  Potential  \: difference \:  (V)   \: = 240  \: v

\bf{ \underline{To \:  Find:- }}

• \sf  \: The \:  current \:  through \:  an \:  electric  \: heater.

<h2>\bf{ \underline{ Solution :-}}</h2>

\bf  \red{•\: The  \: formula  \: of \:  Current  \: (I) =  \frac{V}{R}}

\sf \rightarrow I =  \frac{240}{38}

\sf \rightarrow I = 6.32

\sf \pink{Answer :-  \: The \:  current \:  through \:  an \:  electric  \: heater \: is \: 6.32 \: A.}

6 0
3 years ago
A lamp has a current of 2.17 A. In hours, how long does it take for 1 mole of electrons to pass through the lamp?
Gennadij [26K]

<u>Answer:</u> The amount of time needed for 1 mole of electrons to pass through the lamp is 12.33 hrs.

<u>Explanation:</u>

We are given:

Moles of electron = 1 mole

According to mole concept:

1 mole of an atom contains 6.022\times 10^{23} number of particles.

We know that:

Charge on 1 electron = 1.6\times 10^{-19}C

Charge on 1 mole of electrons = 1.6\times 10^{-19}\times 6.022\times 10^{23}=9.6352\times 10^4C

To calculate the time required, we use the equation:

I=\frac{q}{t}

where,

I = current passed = 2.17 A

q = total charge = 9.6352\times 10^4C

t = time required = ?

Putting values in above equation, we get:

2.17A=\frac{9.6352\times 10^4C}{t}\\\\t=\frac{9.6352\times 10^4C}{2.17A}=44402s

Converting this into hours, we use the conversion factor:

1 hr = 3600 seconds

So, 44402s\times \frac{1hr}{3600s}=12.33hr

Hence, the amount of time needed for 1 mole of electrons to pass through the lamp is 12.33 hrs.

3 0
3 years ago
What average force is required to stop an 1100-kg car in 8.0s if the car is travelling at 95km/h?
Semenov [28]

Answer: 13062.5 N

What average force is required to stop an 1100-kg car in 8.0 s if it is traveling at 95 km/h? i got the answer to be 13062.

6 0
3 years ago
Male turkeys work to attract female turkeys, but only the dominant turkeys of the group breed. The less dominant turkeys are a g
quester [9]
So, all Turkeys work to attract female Turkeys, but only dominant Turkeys benefit from it, and the less dominant Turkeys don't benefit at all from it. That means that they are exhibiting altruism:selfless behavior.

However, in practical terms their behaviour also helps them, as they are often related to the dominant males.
5 0
4 years ago
Read 2 more answers
dvanced photodiode detectors have a second light-emitting diode, operating at a wavelength of 2.0 × 10–7 m, to detect even small
ICE Princess25 [194]

Answer:

1.5\cdot 10^{15}Hz

Explanation:

The relationship between wavelength and frequency is given by:

c=f \lambda

where

c=3\cdot 10^8 m/s is the speed of light

f is the frequency

\lambda is the wavelength

In this problem, we know the wavelength:

\lambda=2.0\cdot 10^{-7} m

So we can re-arrange the formula above to find the frequency:

f=\frac{c}{\lambda}=\frac{3.0\cdot 10^8 m/s}{2.0\cdot 10^{-7} m}=1.5\cdot 10^{15}Hz

5 0
4 years ago
Other questions:
  • The period of a simple pendulum is 3.8 s. the length of the pendulum is doubled. what is the period t of the longer pendulum? t
    9·1 answer
  • Calculate the density of a material that has a mass of 52.457 and a volume of 13.5
    5·1 answer
  • a rocket has a mass 250(10^3) slugs on earth. Specify its mass in si units and its weight in si unites. if the rocket is on the
    5·1 answer
  • Do you agree or disagree with the theories about the permian triassic extinction
    13·1 answer
  • Identify the parts of the energy diagrams.
    15·1 answer
  • The soccer player stops after completing the play described above, but now notices that the ball is in position to be stolen. If
    10·1 answer
  • Sunlight, with an intensity of 667 W / m², strikes a flat collecting surface perpendicularly and is totally absorbed. The area o
    13·1 answer
  • When an electron jumps from an orbit where n = 4 to one where n=2, photon is absorbed. O True O False
    6·1 answer
  • Sound waves are longitudinal waves that can travel through air. Would you expect sound waves to travel faster through a low-dens
    6·1 answer
  • How many electron flow through a light bulb each second if the current flow through the light bulb 0.75A.The electric charge of
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!