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
kow [346]
3 years ago
5

(4)science who ever gets this right will get a brainlest

Physics
2 answers:
Alex_Xolod [135]3 years ago
7 0
The answer is true. Hope this helps
Citrus2011 [14]3 years ago
5 0
The anwser is true hope this helps
You might be interested in
Which of the following describes electric change?
DedPeter [7]
It would be B, like charges repel and unlike charges attract.
8 0
3 years ago
Read 2 more answers
Which of the following has the largest m/mentum?
ASHA 777 [7]
A: The total building of Campbell high school, including the trailers and the construction area
6 0
3 years ago
Which of the following is a common downside of net pens, one of the most common forms of aquaculture?
Eduardwww [97]

Answer:

Answer is overcrowding aka answer choice A. I got the question and got it right. Please mark brainliest. Have a good day! :)

Explanation:

8 0
3 years ago
Read 2 more answers
Which moon is almost half the size of the planet it rotates around? Titan Proteus Deimos Charon
Snowcat [4.5K]

Answer: I feel like it is Charon

3 0
2 years ago
A car horn emits a frequency of 400 Hz. A car traveling at 20.0 m/s sounds the horn as it approaches a stationary pedestrian. Wh
Temka [501]

Answer:

The observed frequency by the pedestrian is 424 Hz.

Explanation:

Given;

frequency of the source, Fs = 400 Hz

speed of the car as it approaches the stationary observer, Vs = 20 m/s

Based on Doppler effect, as the car the approaches the stationary observer, the observed frequency will be higher than the transmitted (source) frequency because of decrease in distance between the car and the observer.

The observed frequency is calculated as;

F_s = F_o [\frac{v}{v_s + v} ] \\\\

where;

F₀ is the observed frequency

v is the speed of sound in air = 340 m/s

F_s = F_o [\frac{v}{v_s + v} ] \\\\400 = F_o [\frac{340}{20 + 340} ] \\\\400 = F_o (0.9444) \\\\F_o = \frac{400}{0.9444} \\\\F_o = 423.55 \ Hz \\

F₀ ≅ 424 Hz.

Therefore, the observed frequency by the pedestrian is 424 Hz.

8 0
3 years ago
Other questions:
  • What is the purpose of setting a deadline for a goal?
    6·1 answer
  • When a kitten is exposed to an environment of just horizontal lines, the kitten?
    15·1 answer
  • A variable that is described using both a number and direction is called
    14·1 answer
  • I REaLLy NEEd hELP WITh THIs SCIENCE. ASAP!!!!!!!! :D
    12·1 answer
  • If the pressure of a gas is increased, then the volume will decre
    9·1 answer
  • What type of wave allows you to hear sounds?
    7·2 answers
  • How do good and bad ozone forms
    12·2 answers
  • Plz help me asap !!!!!!!!!!
    10·1 answer
  • How did the police catch the Golden State Killer?
    6·1 answer
  • Any person for the job he applied Force moment or torque​
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!