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
irinina [24]
3 years ago
7

A tuning fork labeled 392 Hz has the tip of each of its two prongsvibrating with an amplitude of 0.600mma) What is the maximum s

peed of the tip of a prong?b) A housefly (musca domestica) with mass 0.0270 g isholding on to the tip of one of the prongs. As the prong vibrates,what is the fly's maximum kinetic energy? Assume that the fly'smass has a negligible effect on the frequency of oscillation?
Physics
1 answer:
DanielleElmas [232]3 years ago
7 0

a) 1.48 m/s

The tuning fork is moving by simple harmonic motion: so, the maximum speed of the tip of the prong is related to the frequency and the amplitude by

v_{max}=\omega A

where

v_{max} is the maximum speed

\omega is the angular frequency

A is the amplitude

For the tuning fork in the problem, we have

\omega=2\pi f=2 \pi(392 Hz)=2462 rad/s, where f is the frequency

A=0.600 mm=6\cdot 10^{-4} m is the amplitude

Therefore, the maximum speed is

v_{max}=(2462 rad/s)(6\cdot 10^{-4}m)=1.48 m/s

b)  3.0\cdot 10^{-5} J

The fly's maximum kinetic energy is given by

K=\frac{1}{2}mv_{max}^2

where

m=0.0270 g=2.7\cdot 10^{-5} kg is the mass of the fly

v_{max}=1.48 m/s is the maximum speed

Substituting into the equation, we find

K=\frac{1}{2}(2.7\cdot 10^{-5}kg)(1.48 m/s)^2=3.0\cdot 10^{-5} J

You might be interested in
An archer defending a castle is on an 15.5 m high wall. He shoots an arrow straight down at 22.8 m/s. How much time does it take
kodGreya [7K]

Answer:

  about 602 milliseconds

Explanation:

The motion can be approximated by the equation ...

  y = -4.9t^2 -22.8t +15.5

where t is the time since the arrow was released, and y is the distance above the ground.

When y=0, the arrow has hit the ground.

Using the quadratic formula, we find ...

  t = (-(-22.8) ± √((-22.8)^2 -4(-4.9)(15.5)))/(2(-4.9))

  = (22.8 ± √823.64)/(-9.8)

The positive solution is ...

  t ≈ 0.60195193

It takes about 602 milliseconds for the arrow to reach the ground.

8 0
3 years ago
Which of these is not a form of matter? <br> a. air <br> b. milk <br> c. rock <br> d. light
OLga [1]
D. Light as light is a wave
4 0
3 years ago
What is the chemical formula for a chlorine molecule wichs contains two chlorine CI atoms
murzikaleks [220]
Cl2 is the answer. Hope this helps you.
4 0
3 years ago
What happens when parallel rays of light hit a smooth mirror surface
Gnesinka [82]

Answer:it rotate

Explanation:

it just spin

8 0
3 years ago
Which has more gravitaatoinal potental energy: a bird on the ground or the same bird in the tree? why?
julsineya [31]
The same bird on the tree has more gravitational potential energy. This is because it is at a higher distance from the ground as it is on the tree, than when it is on the ground.

Considering also the formula for Gravitational Potential Energy GPE = mgh

For the bird on the ground, h =0,  therefore GPE = m*9.8*0 = 0

For that on the tree = mgh = m*9.8*h

Of course the one on the tree has a value greater than zero.  
7 0
3 years ago
Other questions:
  • Why are conductors and insulators both required to construct the electrical wiring in our home
    11·1 answer
  • What happens to a sound wave as air temperature decreases?
    5·1 answer
  • Changing the camber of a wing by designing positive curvature in or lowering trailing edge flaps allows:______.
    15·1 answer
  • 1. What is true about all forces?a. They are unbalanced b. They involve more than one object c. They cause objects to moved. d.
    6·1 answer
  • Which statement is true?
    5·2 answers
  • Solve this question plz
    8·1 answer
  • PLS HELP WITH THIS DENSITY QUESTIONS AND WHEN SHOWING STEPS PLS USE GRASS
    14·1 answer
  • In the photo below, astronaut Alan Bean works at the Apollo 12 lander. Describe the horizon and the surface you see. What kind o
    14·1 answer
  • If electromagnetic radiation acted like particles in the double-slit experiment, what would be observed? (1 point)
    15·1 answer
  • A ball is tied to the end of a cable of negligible mass. The ball is spun in a circle with a radius 2. 00 m making 7. 00 revolut
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!