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
TiliK225 [7]
3 years ago
9

The length of stereocilia actually vary from 10 to 50 micrometers. Again, assuming that they behave like simple pendula, over wh

at frequency range of sound waves would they resonate. (The actual frequency range of human hearing is 20 Hz 20,000 Hz, so might there be other mechanisms involved and/or might the pendular model be rather oversimplified?)
A. About 70 Hz -160 Hz.
B. About 440 Hz - 1000 Hz.
C. About 20 Hz - 50 Hz.
D. About 0.07 to 0.16 Hz.
Physics
1 answer:
Mila [183]3 years ago
6 0

To solve this problem it is necessary to apply the concepts related to the period based on variables such as gravity, distance and frequency.

By definition, know that the Period is

T_1 = 2\pi \sqrt{\frac{L}{g}}

Where,

L = Length

g = Gravity

At the same time, frequency can be defined as,

f_1 = \frac{1}{T_1}

So using this for 10\mu m we have that,

T_1 = 2\pi \sqrt{\frac{L}{g}}

T_1 = 2\pi \sqrt{\frac{10*10^{-6}}{9.8}}

T_1 = 0.635*10^{-2}s

Then the frequency is

f_1 = \frac{1}{T_1}

f_1 = \frac{1}{0.635*10^{-2}}

f_1 = 157.6\approx 160Hz

For the second length of 50\mu m we have that

T_1 = 2\pi \sqrt{\frac{L}{g}}

T_1 = 2\pi \sqrt{\frac{5*10^{-5}}{9.8}}

T_1 = 1.4*10^{-2}s

Then the frequency is

f_1 = \frac{1}{T_1}

f_1 = \frac{1}{1.4*10^{-2}}

f_1 = 70Hz

Therefore the correct answer is A.

You might be interested in
When a 2.40-kg object is hung vertically on a certain light spring described by Hooke's law, the spring stretches 2.92 cm.(a) Wh
Anastasy [175]

Answer:

805.48N/m

Explanation:

According to Hookes law

F = Ke

F is the force = mg

F = 2.4×9.8 = 23.52N

e is the extension = 2.92cm = 0.0292m

Force constant K = F/e

K = 23.52/0.0292

K = 805.48N/m

Hence the force constant of the spring is 805.48N/m

3 0
2 years ago
What is the momentum of a 0.1-kg mass moving with a speed of 5 m/s
Andrej [43]
This question is wrong because in momontum we will write acceleration instead of speed.     suppose acceleration is 5m/s2 then 
 P= ma 
                then put values
   
4 0
3 years ago
Which of the following is example of convection check all that apply
sladkih [1.3K]

Answer air circulating in a hot air balloon

Explanation:

6 0
3 years ago
Find the speed for Barkely, the dog, if he runs 5.5 miles in 3 hours
amm1812

Answer: B

Explanation:

5.5/3

6 0
3 years ago
The rectangular plates in a parallel-plate capacitor are 0.063 m x 5.4 m. A distance of 3.5 x 10^-5m separate the plates. The pl
Aleks04 [339]

The capacitance of the capacitor is 1.8\cdot 10^{-9}F

Explanation:

The capacitance of a parallel-plate capacitor is given by the equation

C=\frac{k\epsilon_0 A}{d}

where

k is the dielectric constant of the medium

\epsilon_0 = 8.85\cdot 10^{-12} F/m is the vacuum permittivity

A is the area of the plates

d is the separation between the plates

For the capacitor in this problem, we have:

k = 2.1 is the dielectric constant

d=3.5\cdot 10^{-5}m is the separation between the plates

A=0.063m \cdot 0.054m = 0.0034 m^2 (I assumed that 5.4 m is a typo, since it is not a realistic size for the side of the plate)

Therefore, the capacitance of the  capacitor is

C=\frac{(2.1)(8.85\cdot 10^{-12})(0.0034)}{3.5\cdot 10^{-5}}=1.8\cdot 10^{-9}F

Learn more about capacitors:

brainly.com/question/10427437

brainly.com/question/8892837

brainly.com/question/9617400

#LearnwithBrainly

5 0
3 years ago
Other questions:
  • (please help ASAP!)
    12·2 answers
  • A mouse runs along a baseboard in your house. The mouse's position as a function of time is given by x(t)=pt 2+qt, with p = 0.36
    6·1 answer
  • What discovery lead J.J. Thomson to decide that atoms were not indivisible, but are actually composed of smaller parts? Thomson
    12·2 answers
  • In the diagram below, a 5 kg box is pushed from rest by an applied force of 15N for 22 seconds. What was the impulse caused by t
    15·1 answer
  • L 3.1.2 Quiz: Potential Energy in Chemical Reactions
    9·2 answers
  • A ball has 2 kg*m/s of momentum when thrown with a velocity of 8 m/s outwards. Find the mass of the ball.
    10·1 answer
  • A body of mass m1 = 1.5 kg moving along a directed axis in the positive sense with a velocity
    7·1 answer
  • I have a pen<br> I have a apple<br> what do I have now?
    8·2 answers
  • A car drives around a racetrack for 30 seconds. What do you need to know to
    6·1 answer
  • Indicate all ways in which the graph used in question 4 would change if the Normal Force applied to the object was increased. Be
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!