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
Rina8888 [55]
2 years ago
6

Whoever is good at physics, can you help me with these questions?

Physics
2 answers:
qwelly [4]2 years ago
5 0

Answer:

i honestly do not know the awnser , im just setting up my brainly account

Anna [14]2 years ago
5 0

Answer:

Q)32) What is the unit of intensity of sound

Ans)Decibel

Q)33) Relate amplitude and distance to the intensity and loudness of sound

Ans)The average amount of energy passing through a unit area per unit of time in a specified direction is called the intensity of the wave. As the amplitude of the sound wave increases, the intensity of the sound increases. (i can't find the answer for distance and loudness i can't find it on g....o...o....g....l.....e and my textbook u will have to search it on ur own sorry)

Q)34) What is the pitch of sound

Pitch is the rise and fall of our voice when we speak. It is the characteristic of sound by which we can distinguish the sounds of the same loudness. Types: Pitch is generally of two types, high pitch and low pitch. High Pitch: The higher the frequency of the sound, the higher will be the pitch.

Q)35) How is pitch of sound related to its frequency of sound waves?

The sensation of a frequency is commonly referred to as the pitch of a sound. The pitch of the sound we hear depends on the frequency of the sound wave. A high frequency sound wave has a high pitch, and a low frequency sound has a low pitch.

Q)36) Define the Doppler effect?

The apparent change in the frequency of sound due to the relative motion between the source and the observer is called the Doppler effect.

Q)37) Explain why the doppler effect occurs

The Doppler effect, or Doppler shift, occurs when the movement of an observer relative to a source (or vice versa) causes a change in wavelength or frequency.

Sorry i can't find the last one i will try to search it afterwards

You might be interested in
Bio is a root word that means<br> O heart.<br> O life.<br> O cell.<br> O sugar.
I am Lyosha [343]
Life darling
☆*:.。. o(≧▽≦)o .。.:*☆
7 0
3 years ago
Read 2 more answers
Systemic circulation requires help from which of the following bones, lungs, arteries and veins, or muscles
ahrayia [7]
Systemic circulation is between the heart and the rest of the body. Therefore arteries and veins are needed.
4 0
3 years ago
Physical science semester B exam 66 problems , please don’t delete I’m on my last leg I need this please god help me
krek1111 [17]
HI!! If you need answers to your exam, then go to https://quizlet.com/ then search for what you need!! I hope this helps I am not sure what your exam is for, and I don't have enough info to tell you all the answers, but hopefully, this will help you!!

7 0
3 years ago
Orlat
Nana76 [90]

The maximum force that the athlete exerts on the bag is equal to 1,500 N and in the opposite direction as the force that the bag exerts on the athlete.

<h3>Newton's third law of motion</h3>

Newton's third law of motion states that action and reaction are equal and opposite.

Fa = -Fb

The force exerted by the athlete on the bag is equal to the force the bag exerted on the athlete but in opposite direction.

Thus, the maximum force that the athlete exerts on the bag is equal to 1,500 newtons and in the opposite direction as the force that the bag exerts on the athlete.

Learn more about force here: brainly.com/question/12970081

#SPJ1

8 0
2 years ago
A basketball player jumps straight up for a ball. To do this, he lowers his body 0.310 m and then accelerates through this dista
Nastasia [14]

Answer:A)u =4.295m/s  , B)a = 29.746m/s²   C) F=3,153N

Explanation:

Using the kinematic expression  

v² = u² - 2as

where

u = initial velocity

v = final velocity

s = distance

g = acceleration due to gravity .

Given that he reaches a height of 0.940 m above the floor,

the final velocity  = 0

Here, acceleration due to gravity is acting in  opposite the initial direction of motion. So, a=-9.81 m/s.

v² = u² + 2as

0² - u² = 2 (- 9.81) × 0.940

- u² = 2 × - 9.81 × 0.920

- u² = -18.4428

cancelling the minus in both sides , we have that  

u² = 18.4428

u = √18.4428

u =4.295m/s

(b) His acceleration (in m/s2) while he is straightening his legs. He goes from zero to the velocity found in part (a) in a distance of 0.310 m. m/s2

Using v² = u² + 2as

where u = initial speed of basketball player before lengthening = 0 m/s,

v = final speed of basketball player after lengthening =  4.295m/s,

a = acceleration while  straightening his legs

s = distance moved during lengthening = 0.310m

v² = u² + 2as  

 a = (v² - u²)/2s

a = (4.29m/s)² - (0 m/s)²)/(2 × 0.310m)

a = (18.4428 m²/s² - 0 m²/s²)/(0.62 m)

a = (18.4428 m²/s²/(0.62 m)

a = 29.746m/s²

c) The force (in N) he exerts on the floor to do this, given that his mass is 106 kg. N

Force= mass x acceleration.

F = 106 kg X 29.746m/s²

 F = 3,153.076 rounded to  3,153N

8 0
3 years ago
Other questions:
  • Why are plate tectonics a theory?
    15·1 answer
  • The distance from Earth to the star Epsilon Eridani is about 10.5 light years. Which of the following statements is true?
    14·2 answers
  • l o which of the following can move from one atom to another A. protons Msideus. B. neutrons C. electrons the nucleus
    15·1 answer
  • An inverse-time circuit breaker (CB) is used for branch-circuit short-circuit and ground-fault protection for a 30-horsepower, 2
    15·1 answer
  • A light bulb dissipates 100 Watts of power when it is supplied a voltage of 220 volts.
    9·2 answers
  • Which is a property of every<br> mixture?
    10·1 answer
  • A sled of mass 50 kg is pulled along a snow-covered, flat ground. The static friction coefficient is 0.3 and the kinetic frictio
    10·1 answer
  • HURRYYY FASTTT PLEASEEEEE
    5·1 answer
  • How long does it take a car traveling at 50 mph to travel 75 miles? Use one of the following to find the answer.
    8·1 answer
  • A thin 1.5 mm coating of glycerine has been placed between two microscope slides of width 0.8 cm and length 3.9 cm . Find the fo
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!