### What is the sound intensity of a trumpet

Assignment Help Physics
##### Reference no: EM13288525

trumpet creates a sound intensity level of 1.23 x 10^2 dB at a distance of 0.80 m. What is the sound intensity of a trumpet at this distance?

### Previous Q& A

#### Calculate the npv and irr for each type of truck

Calculate the NPV and IRR for each type of truck and decide which to recommend.

#### Compute h in kj per mol of hbr for the solution

When a 9.92-g sample of gaseous hydrogen bromide dissolves in 45.5 g of water in a coffee-cup calorimeter the temperature rises from 25.00 oC to 69.79 oC. Calculate H in kJ per mol of HBr for the solution process.

#### Determine the speed of the second train

When at rest, two trains have sirens that emit a frequency of 300 Hz. The trains travel toward one another and toward an observer stationed between them. What is the speed of the second train

#### How much will you have when the cd matures

Suppose you have \$2,000 and plan to purchase a 3-year certificate of deposit (CD) that pays 4% interest, compounded annually. How much will you have when the CD matures?

#### Calculate the projects earnings before interest and tax

Calculate the project's earnings before interest and tax (EBIT) in Year 2, assuming that the anticipated level of sales materializes.

#### Determine the positions of the nodes for the third harmonic

A stretched string fixed at each end has a mass of 33.0 g and a length of 8.00 m. Determine the positions of the nodes for the third harmonic

#### Compute the value of the prize today

You have just won a lottery. You will receive \$800,000 total, to be divided into 10 equal payments of \$80,000 each, with the first payment to be received today.

#### Explain what was the molarity of the solution

A volume of 40.0 of aqueous potassium hydroxide () was titrated against a standard solution of sulfuric acid (). What was the molarity of the solution if 19.2 of 1.50 was needed? The equation is 2KOH(aq)+H2SO4(aq)=K2SO4(aq0+2H2O(l)

#### What force does the water exert on the bottom of the pool

A 5.0 deep swimming pool measures 30 by 16. What force does the water exert on the bottom of the pool

#### What rate of return should an investor expect to earn

what rate of return should an investor expect to earn if he or she purchases these bonds? (Hint: If the coupon rate exceeds the YTM, Taussig would likely call the bond.)

### Similar Q& A

#### How much time passes before they collide

A person weighs 670N steps onto a spring scale in the bathroom, and the spring compresses by 0.79 cm. What is the spring constant? And what is the weight of another person who compresses the spring by 0.34 cm.

#### The equivalent resistances of the proposed design

A 12.0-{rm kg} box resting on a horizontal, frictionless surface is attached to a 5.00-{rm kg} weight by a thin, light wire that passes over a frictionless pulley). The pulley has the shape of a uniform solid disk of mass 2.40 {rm kg} and diameter 0...

#### How far from the building will the stone land

A stone is thrown horizontally from the roof of a tall building with a speed of 23.3 m/s. how far from the building will the stone land

#### Calculate the approximate magnitude and the direction

A grating has 776 lines per centimeter. Find out the angles of the first three principal maxima above the central fringe when this grating is illuminated with 603 nm light.

#### Find the initial accelerations of the plastic bead

A 2.00 g plastic bead charged to -4.00 nC and a 4.00 g glass bead charged to +8.00 nC are 2.00 cm apart, find the initial accelerations of the plastic bead

#### What is the electric fields direction

A 0.65-g particle remains stationary when placed in a uniform electric field (on earth). What is the electric field's direction

#### What is the torque on the bolt

You slip a wrench over a bolt. Taking the origin at the bolt, the other end of the wrench is at x=18cm, y=5.5cm. What is the torque on the bolt

#### What is potential barrier for the molecule aggregation

What is potential barrier for the molecule aggregation? Will the solution be stable at these conditions? Will it be stable at 100 mmol/L salt concentration?

#### Calculate the speed of an electron

Calculate the speed of an electron after it accelerates from rest through a potential difference of 160 .

#### What is the mass of each rod

A 5.0 megawatt windmill has three 45 m-long blades that can be approximately viewed as straight rods. If the rotational speed of the rods is 6 rpm, what is the mass of each rod

#### Determine the force applied on the board

The range of human hearing extends from approximately 20 Hz to 20000 Hz. Find out the wavelengths of these extremes while speed of sound in air is equal to 348 m/s.

#### Which side of the box should be the side down on the floor

You need to push a box across the room. which side of the box should be the side down on the floor 