### What frequency will hear after the train passes

Assignment Help Physics
##### Reference no: EM133669

Question

A steel wire in a piano has a length of 0.683 m and a mass of 4.24 grams. To what tension must this wire be stretched so that fundamental vibration corresponds to the musical note middle C? Frequency of middle C = 262 Hz. The answer is 795 N. How was this answer achieved?

Directed light in air enters clear ice at incident angle of 50 degrees from the normal. What is angle from the normal in the ice? The index of refraction for ice is 1.31. Answer is 36 degrees. How was this answer achieved?

Train coming toward you at 15 m/s blasts a signal that you hear as 400 Hz. What frequency will you hear after the train passes? Suppose speed of sound is 343 m/s. Answer is 366 Hz. How was this answer achieved?

#### Questions Cloud

 How much indirect factory wages : How much indirect factory wages and factory equipment depreciation cost could be assigned to the Customer Orders activity cost pool? Explain the term marketing channel : Explain the term Marketing Channel Distinguish between exclusive, intensive and selective distribution strategy Guess scale factor of the universe : Guess scale factor of the Universe How much overhead may be allocated each time : How much overhead may be allocated each time a copy is made if cost allocations are computed to 4 significant digits? What frequency will hear after the train passes : What frequency will hear after the train passes Discover the magnetic field on the z axis : Discover the magnetic field on the z axis What happens if the block is immersed in carbon disulfide Write notes on marijuana and cannabis compounds : Smoking is hazardous to health. Justify this statement by referring to cardiovascular diseases, cancer and respiratory diseases. As a counsellor what techniques would you use to promote smoking cessation Write notes on- (a) Marijuana and Cann.. Pest framework : main components of sustainability work against sustainable tourism, challenges that a land-locked country might face in developing its tourism destination as compared to an island, core pointers that underpin sustainable tourism Evaluate the intrinsic value of the option : Evaluate the intrinsic value of the option? Determine the option's time premium at this price?

### 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?