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
Katyanochek1 [597]
2 years ago
5

The students observe that the pitches of the sounds from the fire truck and the

Physics
1 answer:
Blababa [14]2 years ago
5 0

So, option 3 or the ambulance sound waves have more waves and shorter wavelength is the correct reason for ambulance siren having higher pitch compared to fire truck siren

Explanation:

Pitch of any sound wave is determined as the clarity in frequency of notes or the number of times a cycle is repeated for a single second. So pitch is similar to frequency. And frequency is the measure of number of complete cycles in a second. So if the ambulance siren has higher pitch compared to siren of fire truck. Then this means the frequency of ambulance siren is greater than the fire truck siren. As the frequency is more, then from the given options, choice 3 is correct. The ambulance siren have more waves and shorter wavelength. As more the frequency or number of waves, lesser or shorter is the wavelength of sound wave from ambulance.

You might be interested in
A ball, which has a mass of 1.25 kg, is thrown straight up from the top of a building 225 meters tall with a velocity of 52.0 m/
Anastasy [175]

First we will find the speed of the ball just before it will hit the floor

so in order to find the speed of the cart we will first use energy conservation

KE_i + PE_i = KE_f + PE_f

\frac{1}{2}mv_i^2 + mgh = \frac{1}{2}mv_f^2 + 0

\frac{1}{2}(1.25)(52)^2 + 1.25(9.8)(225) = \frac{1}{2}(1.25)v_f^2

So by solving above equation we will have

v_f = 84.3 m/s

now in order to find the momentum we can use

P = mv

P = 1.25 \times 84.3

P = 105.4 kg m/s

3 0
3 years ago
A long non-conducting hollow cylinder with inner radius, ri and outer radius, r2 is charged with a uniform positive charge with
IgorLugansk [536]

Answer:yup

Explanation:mhmm

4 0
3 years ago
Exercise that strengthens your heart, increases your lung capacity, and helps you to burn fate and lose weight is..
olga2289 [7]

Answer : Cardio training

Explanation : Cardio exercise helps improve lung function , strengthens your heart and improve your endurance and increases lung capacity. The peoples do cardio is burn calories and lose the weight.

Cardio helps decrease your heart rate and blood pressure and improve your breathing.

8 0
3 years ago
The following is an example of a physical or a chemical change?? Alex made a beautiful origami swan out of a blue sheet of paper
REY [17]
Pretty sure physical, a chemical change would be something of the time of acid rain, meanwhile physical changes are the ones that affect the form not the actual chemical composition
5 0
3 years ago
A boat is towing two skiers at the same time. how long should the tow lines be?
BigorU [14]
The tow lines for the two skiers must be of the same length. No matter the number of skiers towed, the length of the tow lines must be the same. Towing people on ski requires additional skills and some safety precautions must be taken. Most importantly, it is dangerous and illegal to tow at night. 
4 0
3 years ago
Other questions:
  • The adjustments that your eyes make as they look from objects near to objects far away or from objects far away to objects close
    13·1 answer
  • Which of the following is not a popular surface for a tennis court?
    8·1 answer
  • If an object is moving up, is it considered to have a positive or negative velocity?
    8·1 answer
  • A 3-kilogram ball is accelerated from rest to a speed of 10 m/sec. What is the ball's change in momentum?
    15·2 answers
  • Suppose an object is moving in a straight line at 50 mi/hr. According to Newton's first law of motion, the object will:
    13·1 answer
  • B. a student attaches a nozzle with an exit radius that is n times smaller than the faucet radius. 2b) let n = 3 i. how will thi
    10·1 answer
  • A type of energy work that utilizes touch and visualization
    14·1 answer
  • . Calculate the efficiency of a bicycle if the input work to turn the pedal is 45J and the output work is 20J. * 1 point 2.25 2.
    10·1 answer
  • How long will it take for a radioactive isotope with a decay constant of 0.15 (which means a half life of 4.6 days ) to decay to
    5·1 answer
  • U need help so can some one help me
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!