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
Nana76 [90]
3 years ago
13

A police car is moving to the left at 34m/sec while its siren is emitting a 600Hz tone. What tone would you hear if you were par

ked along side the road
Physics
1 answer:
faust18 [17]3 years ago
8 0

Answer:

545.89\ \text{Hz}

Explanation:

v_o = Velocity of observer = 0

v_s = Velocity of source = 34 m/s

v = Speed of sound in air = 343 m/s

f = Emitted frequency = 600 Hz

Doppler effect will be observed

f_o=f(\dfrac{v+v_o}{v+v_s})\\\Rightarrow f_o=600(\dfrac{343+0}{343+34})\\\Rightarrow f_o=545.89\ \text{Hz}

The frequency heard will be 545.89\ \text{Hz}.

You might be interested in
What is the name of the protein did the human use to create dogs?
Margaret [11]

Humans did not create dogs.

Humans have never created any new living species.

So far, the only one who can do that is You Know Who.
3 0
3 years ago
How much heat is required to raise the temperature of 100 g of water from 5 degree celsius to 90 degree celsius?​
Scorpion4ik [409]

Explanation:

1-How many moles of NazCOs are in 10.0 ml of a 2.0 M solution?

2-How many moles of NaCl are contained in 100.0 ml of a 0.20 M solution?

3- What weight (in grams) of H2SO4 would be needed to make 750.0 ml of

2.00 M solution?

4-What volume (in ml) of 18.0 M H2SO4 is needed to contain 2.45 g H2S04?

8 0
3 years ago
If there is an object in top of another object, why does the upper object exert a downward normal force?​
rusak2 [61]

Answer:

This is because normal force is exerted perpendicularly to the point of contact between the upper and lower objects.  

Explanation:

This is because the upper object is still subject to gravitational pull. Therefore, the amount of force it exerts on the lower object due to gravity will be equal to the normal force that acts in the negative direction of gravitational force. Additionally, normal force is evident because the upper object will not go into the lower object.

4 0
3 years ago
A 15-watt bulb is connected to a circuit that has a total of 60. Ω of resistance. How many electrons are passing through that bu
Mariulka [41]

Answer:

3.2075*10^16

Explanation:

Q=P/V just search up a converter and youll get 30V and so you do 15/30 which is a half and a single coulomb is 6.415*10^16 so you half it. I belive this is correct if you dont belive me wait for someone else smarter to answer and compare.

3 0
3 years ago
I need help with question 2 and 2 please
vitfil [10]
Alright here the answer to number 2

5 0
4 years ago
Other questions:
  • Which type of image can be projected on a screen?<br><br> Plain<br> Virtual
    13·2 answers
  • Based on the thermodynamic properties provided for water, determine the energy change when the temperature of 0.650 kg of water
    15·1 answer
  • Which of the following is true about the atom shown? Choose all that apply. . . (I will have the Image Bellow). . *It is unstabl
    15·1 answer
  • true or false temperature and precipitation are the two most important elements of climate for the majorit of living things
    11·1 answer
  • Which property of metals allows corrosion to take place? reactivity malleability ductility conductivity Description
    5·2 answers
  • A projectile of mass 2.0 kg is fired in the air at an angle of 40.0 ° to the horizon at a speed of 50.0 m/s. At the highest poin
    5·1 answer
  • How do I learn French fast for an examination​
    5·1 answer
  • The density of ice can help preserve the habitats of aquatic organisms, but it can also cause the death of an organism. Which st
    13·1 answer
  • I’m on a test please help me
    10·1 answer
  • The amplitude of a lightly damped oscillator decreases by 4.2% during each cycle. What percentage of the mechanical energy of th
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!