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
Lerok [7]
3 years ago
11

True or False. A loud noise gives off less energy than a quiet noise.​

Physics
2 answers:
zvonat [6]3 years ago
5 0

Answer:

true

Explanation:

hope it helped you

Zielflug [23.3K]3 years ago
4 0

Answer:

True

Explanation:

A loud noise cancels out

You might be interested in
The coefficient of linear expansion of ordinary glass is three times that of Pyrex glass. An ordinary glass rod and a Pyrex glas
DochEvi [55]

Answer:

b. 3 times

Explanation:

Lets take

Coefficient for ordinary glass = α₁

Coefficient for pyrex glass = α₂

 Given that α₁ = 3 α₂

Initial length of both glasses are equal = L

Change in the temperature is also same .= ΔT

We know that change in the length  given as

ΔL =  L α ΔT

Therefore

\dfrac{\Delta L_1}{\Delta L_2}=\dfrac{L\alpha_1\Delta T}{L\alpha_2\Delta T}

\dfrac{\Delta L_1}{\Delta L_2}=\dfrac{3\alpha_2}{\alpha_2}

ΔL₁ = 3ΔL₂

Therefore change in the length of original glass is three time of pyrex glass.

b. 3 times

6 0
3 years ago
Calculate the wavelength (in nm) of the blue light emitted by a mercury lamp with a frequency of 6.88 × 1014 Hz. The speed of li
Nezavi [6.7K]

Answer: 430 nm.

Explanation:

The relation of wavelength and frequency is:

Formula used : \nu=\frac{c}{\lambda}

where,

\nu = frequency =6.88\times 10^{14}Hz

\lambda = wavelength  = ?

c = speed of light = 3.00\times 10^{8}m/s

Now put all the given values in this formula, we get

6.88\times 10^{14}=\frac{3.00\times 10^{8}m/s}{\lambda}

\lambda=\frac{3.00\times 10^{8}m/s}{6.88\times 10^{14}}=0.43\times 10^{-6}m=430m        (1nm=10^{-9}m)

Thus the wavelength (in nm) of the blue light emitted by a mercury lamp is 430 nm.

6 0
3 years ago
Amoebas have projections called pseudopods. What are they used for
Dvinal [7]

Answer:

Amoebas have projections called pseudopods

Explanation:

Pseudopodia is the locomatary organ of amoeba. It helps them in movement and transportation.

8 0
2 years ago
Which fractures tend to occur first when a pane of glass is struck?
Irina18 [472]

Radial fractures tend to occur first when a pane of glass is struck.

Answer: Option A

<u>Explanation:</u>

There is a slight difference between radial and concentric fractures and as radial fractures are formed which extends outwards in a radial manner  from the point where the glass is struck.

Whereas concentric fractures are circular in pattern and they terminate long before radial crack. Also when a bullet is fired from a gun, a similar reaction is observed as it gets struck on the surface and fractures are formed in the same pattern.

4 0
3 years ago
GRADE 9 SCIENCE I GRADE 9 SCIENCE 1 1 OF 24
andreyandreev [35.5K]

Answer:

burger and cheese with applesauce

7 0
3 years ago
Other questions:
  • How do Newton's laws of motion explain why it is important to keep the ice smooth on a hockey rink so that players can
    8·2 answers
  • Which statement about convection is correct?
    7·2 answers
  • Weight is a force that depends on mass and: *
    11·2 answers
  • When temperature and pressure are applied to sedimentary and igneous rock?
    5·1 answer
  • The mass of an object is independent of its location.
    5·1 answer
  • What kind of mixture is a solution? a colloid ?
    15·2 answers
  • Which of the following statements are true about metallic bonds? A. Metallic bonds hold together atoms with somewhat similar ele
    15·1 answer
  • A car has a kinetic energy of 4.32 x 10^5 J when traveling at a speed of 23 m/s.
    15·1 answer
  • A balloon-powered car rolls across the floor at a speed of 0.711 m/s. How long does it take to cover 8.25 m?
    15·1 answer
  • Change 1m2 in to cm2, mm2 and km2​
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!