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
natta225 [31]
3 years ago
5

Suppose you were bungee jumping from a bridge while blowing a hand-held air horn. How would someone remaining on the bridge hear

the pitch of the air horn as time increased?
Physics
2 answers:
castortr0y [4]3 years ago
7 0

Answer:

Pitch would decrease

Explanation:

According to Doppler's effect, the apparent frequency (pitch) of a sound changes if there is relative motion between the source and the listener.

As the distance increases between the source and the listener, the apparent frequency heard by the listener would be lower than the source frequency.

So, as the bungee jumper would go up in the air, the listener standing on the bridge would hear decreasing pitch.

Genrish500 [490]3 years ago
4 0

Answer:

The pitch will progressively lower

Explanation:

If i were bungee jumping from  a bridge while blowing a hand-held air horn and someone who remains on the bridge will hear a decreased pitch or frequency as the source is moving away from the stationary listener as per the Dooplers effect. Hence, the pitch will progressively lower as the source is moving away from the observer.

You might be interested in
Write the dimension of a / b in the x = at + bt2. Where x is the distance and t is the time?​
Luba_88 [7]

The dimension of a/b where x is the distance and t is the time is T

Given the expression

x = at + bt²

where

x is the distance

t is the time

Based on the homogeneity principle, the expression on the left-hand side must be equal to that on the right. Hence;

x = at

a = \frac{x}{t}

Since x is the distance and distance is measured in metres, the dimension equivalent will be the length 'L'

Since t is the time and time is measured in seconds, the dimension equivalent will be the seconds 'T'

a=\frac{L}{T}

Similarly;

x  = bt²

b=\frac{x}{t^2}\\b=\frac{L}{T^2}

Next is to get a/b;

\frac{a}{b} =  \frac{L}{T} \div \frac{L}{T^2}\\\frac{a}{b} = \frac{L}{T}*\frac{T^2}{L}  \\\frac{a}{b} =\frac{T^2}{T}\\\frac{a}{b} =T

Hence the dimension of a/b is T

4 0
3 years ago
In which type of indicating valve is the valve stem housed in a hollow metal post that contains a movable plate with a small gla
Sergio [31]

Answer:

Post indicator valve

Explanation:

Post Indicator Valves are commonly used to control the water flow of sprinkler systems used in public and private buildings, warehouses, and factories for fire suppression. PIVs control water flow from the public system into the building's fire suppression system.

5 0
3 years ago
A current of 200 mA through a conductor converts 40 joules of electrical energy into heat in 30 second
Komok [63]

Answer:

V = 6.65 [volt]

Explanation:

First, we must calculate the power by means of the following equation, where the voltage is related to the energy produced or consumed in a given time.

P=E/t\\P = 40/30\\P = 1.33[s]

Using the power we can calculate the voltage, by means of the following equation that relates the voltage to the current.

P=V*I

where:

V = voltage [Volts]

I = current = 200 [mA] = 0.2 [A]

V = 1.33/0.2\\V = 6.65 [volt]

8 0
4 years ago
Describe two ways alloys improve upon the properties of pure metal elements ?
IrinaVladis [17]
A) Metal expand upon heating. B) Alloys expand less upon heating than elemental metals. C) Alloys expand more upon heating than elementals metals. D) The rate of the expansion of metals is directly proportion to the temperature to which it is heated
6 0
4 years ago
What is the most effective way to protect dry lands from desertification
Sonja [21]

Answer: Planting a tree belt.

Explanation:

The most effective method by which the desertification of the soil can be controlled is by planting more and more trees.

The process of desertification occurs when there is a loss of vegetation, water bodies and animals  from a particular area. Loss of trees makes the area look like desert.

So, planting trees along with some irrigation will help to cope with problem.

4 0
4 years ago
Read 2 more answers
Other questions:
  • Work output of a large machine in a factory is 89,000 joules, and it’s input is 102,000 joules. Work output of a similar machine
    14·2 answers
  • A hummingbird can flutter its wings 4,800 times per minute.
    6·2 answers
  • Boss tweed encourages his associates to work "like a well-oiled machine", thus providing his workers with
    10·2 answers
  • Magnets attract iron. T/F
    12·2 answers
  • A car of mass 1400 kg travelling at 15 m/s goes over a circular arc-shaped bump in the road. if the radius of the arc is 40 m, w
    7·1 answer
  • A 9.00-cm-long wire is pulled along a U-shaped conducting rail in a perpendicular magnetic field. The total resistance of the wi
    12·1 answer
  • Which of the following are possible units for a spring constant?
    13·2 answers
  • A car has a maximum acceleration of 2.75 m/s2. What is the new maximum acceleration of the little car if it tows another car tha
    5·1 answer
  • 12) A horizontal force of 200 N is applied to move a 55-kg cart (initially at rest) across a 10 m level surface. What is the fin
    12·1 answer
  • Alchemists searched for ways to change lead into gold. Which type of change
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!