### What is the linear speed of the phonograph needle

Assignment Help Physics
##### Reference no: EM133758

Question1

Submarine (when at rest underwater) uses a sonar device that sends 20 kHz sound pulses downward from bottom of it. It detects two echoes; one coming from another submarine that is directly underneath and moving in the upward direction at a speed vs and other coming from ocean ground. If the detected beat frequency is 400 Hz, find the speed of the approaching submarine in km/h. Take the speed of radar waves in sea water as 980 m/s.

Question2

If the inner and outer radii of groove on an LP are 10 cm and 5 cm, what is the linear speed of the phonograph needle at the beginning and at end of play, respectively? (A standard LP rotates at the speed of 33.3333 rev/min.)

#### Questions Cloud

 What is the steam-side coefficient : What is t he steam-side coefficient Discover minimum thickness of glass : Discover minimum thickness of glass Estimate mean and maximum velocities for a liquid : Estimate mean and maximum velocities for a liquid Different stages in the tourism area life cycle : Critically review the different stages in the Tourism Area Life Cycle How far the Tourism Area Life Cycle can be used as a basis for developing tourism destination policy What is the linear speed of the phonograph needle : What is the linear speed of the phonograph needle The key elements in the tourism policy and planning process : Identify the key elements in the tourism policy and planning process,  Critically review the changing approaches to tourism policy and planning Measure the performance of the mauritian tourism sector : In the wake of globalization and the phasing out of preferential trade agreements the Mauritian Tourism sector is increasingly seen as one of the main pillar for the sustainable economic growth of the Island Critically discuss the main indicato.. Discuss the stages in the strategic decision making process : Discuss the stages in the strategic decision making process. Support your answer with examples from the tourism and hospitality sector What are SBU's, In your opinion, how effective are they in large conglomerates or multinational corporations .. When is a strategic plan an effective tool : When is a strategic plan an effective tool in a business enterprise What are functional strategies and how important are they in helping an organisation to achieve its common goals How can a strong corporate culture be an asset for the practice..

### Write a Review

#### Find the magnitude of the resulting magnetic field

A sphere of radius R is uniformly charged to a total charge of Q. It is made to spin about an axis that passes through its center with an angular speed ω. Find the magnitude of the resulting magnetic field at the center of the sphere.

#### Find the equivalent resistance

A resistor is in the shape of a cube, with each side of resistance  R . Find the equivalent resistance between any two of its adjacent corners.

#### What is the electric field at the location

Question: Field and force with three charges? What is the electric field at the location of Q1, due to  Q 2 ?

#### What is the maximum displacement of the bridge deck

What is the maximum displacement of the bridge deck?

#### What is the magnitude of the current in the wire

What is the magnitude of the current in the wire as a function of time?

#### Blackbody

Questions on blackbody, Infra-Red Detectors & Optic Lens and Digital Image.

#### Gravity conveyor

Illustrate the cause of the components accelerating from rest down the conveyor.

#### Calculate the dc voltage

Calculate the dc voltage applied to the circuit.

#### Quadrupole moments in the shell model

Quadrupole moments in the shell model

#### Determine the tension in each string

Determine the tension in each string

#### Introductory mechanics: dynamics

Calculate the smallest coefficient of static friction necessary for mass A to remain stationary.

#### Evaluate maximum altitude

Evaluate maximum altitude?