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
kow [346]
3 years ago
11

To what tension (in newtons) must you adjust the screw so that a transverse wave of wavelength 3.33 cm makes 621 vibrations per

second?
Physics
1 answer:
PilotLPTM [1.2K]3 years ago
7 0

Answer:

T=9.4 N

Explanation:

We are given that

Mass of wire,m=16.5 g=\frac{16.5}{1000}kg

1 kg=1000g

Length of wire,l=75 cm=75\times 10^{-2}m

1 m=100 cm

Wavelength of transverse wave=\lambda=3.33 cm=3.33\times 10^{-2}m

Frequency=621 Hz

Mass per unit length=m_l=\frac{m}{l}=\frac{16.5}{1000\times 75\times 10^{-2}}=0.022 kg/m

\nu=\frac{v}{\lambda}

v=\nu \lambda

Where\nu=frequency of wave

\lambda=Wavelength of wave

Speed of wave=v

Using the formula

v=3.33\times 10^{-2}\times 621=20.7m/s

v=\sqrt{\frac{T}{m_l}}

v^2=\frac{T}{m_l}

T=v^2m_l

Using the formula

T=(20.7)^2\times 0.022=9.4N

Hence, the tension,T=9.4 N

You might be interested in
Scientists earlier believed that the lowest measurable temperature is the freezing point of ice. However, modern scientists beli
Leni [432]

<span> The statement that best accounts for these different opinions is: scientists propose contradictory ideas to include all possibilities. This statement refers to the scientific method, that is a set of different techniques for investigating phenomena and gaining new knowledge that can improve or correct the previous one. As a result, analysis based on contradicting opinions leads to the progress in scientific sphere.</span>

7 0
3 years ago
Part A.)Six boxes held at rest against identical walls.
krok68 [10]

Answer:

Explanation:

When a body is held against a vertical wall , to keep them in balanced position , normal force is applied on their surface . this force creates normal reaction which acts against the normal force and it is equal to the normal force as per newton's third law . Ultimately friction force is created which is proportional to normal force and it acts in vertically upward direction . It prevents the body from falling down .

Hence normal force = reaction force .

From second law also net force is zero , so if  normal force is N and reaction force is R

R - N = mass x acceleration = mass x 0 = 0

R = N .

Ranking normal force from  highest  to smallest

150 N , 130 N , 120 N

B )

Frictional force is equal to the weight of the body because the body is held at rest .

Ranking of frictional force form largest to smallest

7 kg , 5 kg , 3 kg , 1 kg .

Here frictional force is irrespective of the normal force acting on the body  because frictional force adjusts itself so that it becomes equal to weight in all cases here because it always balances the weight of the body .

6 0
3 years ago
HELP QUICK!! GIVING 16 PTS!!
Alex17521 [72]
Well visual and perceptual are both the way you see things and tactile is touch so it has to be Olfactory
8 0
3 years ago
Read 2 more answers
How much force is needed to accelerate a 1000Kg car at a rate of 3m/s2?
ikadub [295]

According to Newton (2nd law),   Force = (mass) x (acceleration)

Substitute what we know :           Force = (1,000 kg) x (3 m/s²)

Do the arithmetic:                        Force = 3,000 kg-m/s²  =  3,000 newtons

6 0
3 years ago
Read 2 more answers
Organisms that live on or burrow into the ocean floor are
creativ13 [48]
Benthos 

Option b is the answer



8 0
3 years ago
Read 2 more answers
Other questions:
  • What happens to the sound of a train whistle as a train approaches and passes you? why?
    12·1 answer
  • 4. A solution that contains a large amount of salt and a small amount of water is said to be a _______ solution.
    15·1 answer
  • A child pushes her toy across a level floor at a steady velocity of 0.50 m/s using an applied force of 2.0 N. If the weight of t
    5·2 answers
  • A deep-space vehicle moves away from the Earth with a speed of 0.870c. An astronaut on the vehicle measures a time interval of 3
    11·1 answer
  • How does the Coriolis effect impact ocean currents in the Northern and Southern Hemispheres?
    14·1 answer
  • In scientific notation, 474,000 is written:
    11·1 answer
  • Two planes approach each other head on. Each has a speed of 721km/h and they spot each other when they are initially 14.7km apar
    11·1 answer
  • !!! HELP!!! HELL GELP HELP HELP
    8·2 answers
  • Jim can ride his bike at 12 meters per second. Bob can ride his bike at 10.5 m/s. If they
    14·1 answer
  • Find the acceleration of the blocks when the system is released. The coefficient of kinetic friction is 0.4, and the mass of eac
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!