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
storchak [24]
4 years ago
15

Why does a siren have a lower pitch as it moves away from you? A The period of the sound wave is decreased B The amplitude of th

e sound wave is increased C The crests of the sound wave are farther apart D The troughs of the sound wave are spaced closer together. ​
Physics
2 answers:
Phantasy [73]4 years ago
7 0

Answer:

C

Explanation:

I think it's C because when it moves further away the sound wave is moving apart  

sweet-ann [11.9K]4 years ago
4 0

Answer:

it is letter C

there is a video explaining this

You might be interested in
A 4.55 nF parallel-plate capacitor contains 27.5 μJ of stored energy. By how many volts would you have to increase this potentia
aivan3 [116]

Answer:

\Delta V=V_{2}-V_{1}=45.4V

Explanation:

The energy, E, from a capacitor, with capacitance, C, and voltage V is:

E=\frac{1}{2} CV^{2}

V=\sqrt{2E/C}

If we increase the Voltage, the Energy increase also:

V_{1}=\sqrt{2E_{1}/C}

V_{2}=\sqrt{2E_{2}/C}

The voltage difference:

V_{2}-V_{1}=\sqrt{2E_{2}/C}-\sqrt{2E_{1}/C}

V_{2}-V_{1}=\sqrt{2*55*10^{-6}/4.55*10^{-9}}-\sqrt{2*27.5*10^{-6}/4.55*10{-9}}=45.4V

5 0
3 years ago
Que es entrenamientos físicos?
Gnesinka [82]

el uso sistemático de ejercicios para promover la aptitud física y la fuerza.

3 0
3 years ago
4
telo118 [61]
Ik what it is hit me up for it
5 0
3 years ago
Pls answer ASAP pls bc I’m tryna get my grade up please
Sidana [21]

Answer:

The right answer for this question is 85%.

(I had the same question.)

6 0
2 years ago
What is the term of movement in a particular direction
Art [367]
That is a vector. It is a combination of direction and velocity. (You can think of Vector from Despicable Me to help you remember the term)
:)
7 0
3 years ago
Other questions:
  • A front wheel drive vehicle is pulling to the left. Loose engine cradle bolts are noticed during the initial inspection. Technic
    13·1 answer
  • How does heat affect the thermal energy of an object that is colder than the qir
    15·1 answer
  • Suppose that water is pouring into a swimming pool in the shape of a right circular cylinder at a constant rate of 5 cubic feet
    15·1 answer
  • A cylindrical coil of radius 6 cm is placed in magnetic field, which is changing in time with the rate 0.5 T/s. The magnetic fie
    8·1 answer
  • Which is most likely true about electronegativity?
    7·2 answers
  • You are riding in a car on the freeway when a large truck speeds by you. Why is your car pushed towards the truck?
    8·1 answer
  • Which type of earthquake waves travel out in all directions from the focus, the point in the crust where the earthquake occurred
    7·1 answer
  • What 3 factors should be considered when designing a lighting rod?
    10·1 answer
  • During an adiabatic process in a closed system, what happens to a gas when the gas expands?
    11·1 answer
  • An object completes 50 cycles in 150 s.
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!