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
Liono4ka [1.6K]
3 years ago
6

The total length of the cord is L = 7.00 m, the mass of the cord is m = 7.00 g, the mass of the hanging object is M = 2.50 kg, a

nd the pulley is a fixed a distance d = 4.00 m from the wall. You pluck the cord between the wall and the pulley and it starts to vibrate. What is the fundamental frequency (in Hz) of its vibration?
Physics
1 answer:
Vlada [557]3 years ago
3 0

Answer:

frequency = 19.56 Hz

Explanation:

given data

length L = 7 m

mass m = 7 g

mass M = 2.50 kg

distance d = 4 m

to find out

fundamental frequency

solution

we know here frequency formula is

frequency = \frac{v}{2d}   ...........1

so here d is given = 4

and v = \sqrt{\frac{T}{\mu} }  ..........2

tension T = Mg = 2.50 × 9.8 = 24.5 N

and μ = \frac{m}{l} =  \frac{7*10^{-3} }{7} = 10^{-3} kg/m

so from equation 2

v = \sqrt{\frac{24.5}{10^{-3}} }

v = 156.52

and from equation 1

frequency = \frac{v}{2d}

frequency = \frac{156.52}{2(4)}

frequency = 19.56 Hz

You might be interested in
What is the formula for amplitude?
Vesna [10]

Explanation:

In periodic motion, amplitude is half the distance between the minimum and the maximum.

A = (max - min) / 2

8 0
3 years ago
The global winds and moisture belts indicate that large amounts of rainfall occur at
diamong [38]

it should be rising and converging

3 0
3 years ago
Which is the best description of biodiversity?
zavuch27 [327]
The variety of organisms on a given area. so i’d say #2. hope this is right
8 0
2 years ago
Read 2 more answers
Galileo was the first scientist to do which of the following? A. estimate the speed of light B. propose the heliocentric theory
stich3 [128]
The answer to this question is a the estimate the speed of light
4 0
3 years ago
Read 2 more answers
If the weight of a submerged object is equal to the buoyant force, what net force acts upon the object?
Y_Kistochka [10]

Answer:

A

Explanation:

The weight is acting downwards where as the buoyant force acting upwards (opposite) direction with equal amount of force. so the opposite forces cancel out each other (because of the force amount being equal) and no net force is acting on the object.

Hope i have helped you

Thanks.

7 0
3 years ago
Other questions:
  • PLEASE HELP! Brainliest will be given!!!
    11·1 answer
  • Uma pessoa exercita-se em uma esteira rolante manual. Ela andou 20 minuots com velocidade de 5.4km/h e consumuiu 200 quilocalori
    9·1 answer
  • Which is the relationship between photon energy and the color of light?
    6·1 answer
  • A 37 N object is lifted to a height of 3 meters, What is the potential energy of this object?
    7·1 answer
  • Discuss what it means to view a moving objectt from a frame of reference. Supply an example that illustrates your explanation.
    7·1 answer
  • A 5.0-kgkg rabbit and a 12-kgkg Irish setter have the same kinetic energy. If the setter is running at speed 3.7 m/sm/s, how fas
    12·1 answer
  • An airplane propeller is 2.16 m in length (from tip to tip) with mass 100 kg and is rotating at 2900 rpm (rev/min) about an axis
    14·1 answer
  • A rock is dropped from a height of 2.7m. How fast is it going when it hits the ground?
    14·1 answer
  • A 45000 watt crane operating at full power lifts a 2100 kg object vertically for 17.4 seconds. How high has the crane lifted the
    12·1 answer
  • I have no clue how to do this at all
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!