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
Ronch [10]
2 years ago
9

True or false: In order to create a sound wave, work must be done.

Physics
1 answer:
il63 [147K]2 years ago
4 0

True - Because a sound wave carries energy; to propagate energy, energy must be applied for the sound wave to carry energy.

You might be interested in
Observations must be _____. <br> subjective <br> objective <br> biased <br> deductive
Dmitrij [34]
Objective
because it means<span> based on measurement, or reasoning free of bias.</span>
6 0
3 years ago
Read 2 more answers
Find the velocity in m/s of a swimmer who swims 110m toward the shore in 72 s
Sladkaya [172]
1.5 m/s toward shore 

8 0
3 years ago
A generator converts mechanical energy into _____________________ energy.
erica [24]
Electrical energy is your answer.
6 0
3 years ago
Read 2 more answers
Consider a situation where the acceleration of an object is always directed perpendicular to its velocity. This means that
Bond [772]

Answer:

this situation would not be physically possible

7 0
3 years ago
the gas in a balloon has P=100000 pa and v=0.0279 m^3. if the pressure increases to 120000 pa at constant temperature, what is t
mash [69]

Answer:

New volume of the baloon is 0.02325m^3

Explanation:

To answer this question we need to know the ideal gas law, which says:

p•V = n•R•T

p is pressure, V is volume, n is amount of substance (in moles), R is constant value and T is temperature.

Since it's stated that n and T are constant, and we know that R is a constant too, that means that p•V = constant value. Basically, that means that p1•V1 (pressure and volume before the pressure increase) equals to p2•V2 (pressure and volume after the pressure increase).

That means that:

100000 Pa • 0.0279 m^3 = 120000 Pa • V2. Next, V2= 100000•0.0279/120000. So, V2=0.02325m^3.

6 0
3 years ago
Read 2 more answers
Other questions:
  • Convert the temperature 288 K to degrees Celsius
    5·2 answers
  • Quanto vale a resultante de duas forças de mesmo módulo mesma direção e sentidos opostos atuando sobre um corpo de massa igual a
    12·2 answers
  • How do i do this? i don’t understand
    9·1 answer
  • What can scientist learn from studying sedimentary rocks?
    5·2 answers
  • What does each of the facts shown above tell you about the element
    14·1 answer
  • Light traveling in water (n = 1.33) into an unknown medium.If rhe angles if incidence and refraction are 40 degrees and 25 degre
    10·1 answer
  • Suppose two loaded train cars are moving toward one another, the first having a mass of 1.50 \times 10^5\, \mathrm{kg}1.50×10 5
    11·1 answer
  • Food that is cooked properly can no longer be contained. True or false
    15·1 answer
  • boat travels through a river at a speed of 25 m/s, passing through schools and opening the soundtrack. One student measured freq
    6·1 answer
  • Whoever is good at physics, can you help me with these questions?
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!