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
stich3 [128]
3 years ago
11

A small radio speaker is suspended inside a spherical balloon. The balloon has a radius of 0.50 m. The power of the sound wave e

mitted from the speaker is 12 W. What is the intensity of the sound at the surface of the balloon? (The surface area [A] of the balloon is given by A=4πr2 .)
Radio frequency diagram - Wave Characteristics 25

A.
2.5 W/m2
B.
3.8 W/m2
C.
5.5 W/m2
D.
6.4 W/m2
Biology
1 answer:
sergey [27]3 years ago
7 0

Answer:pls no ban me only poor children

Explanation:

You might be interested in
Which statement about the molecules in ice and water is correct?
Assoli18 [71]
The molecules in ice are close together and do not have any movement, or energy at all (frozen). The molecules in water are apart from each other and do have motion and energy. The molecule in gas or vaporization, are far apart from each other, have rapid movement, and have a great amount  of energy. Just think that the lighter the liquid state of matter gets, the more energy and motion it has.
6 0
3 years ago
What percentage of nitrogen does our atmosphere contain?
alekssr [168]
Earth's atmosphere is 78%<span> nitrogen </span>21%<span> oxygen, </span>0.9%<span> argon, and </span>0.03%<span> carbon dioxide with very small percentages of other elements.
hope it helps</span>
5 0
3 years ago
Which kingdoms include only eukaryotes? A) Fungi and Plantae B) Plantae and Animalia C) Plantae, Animalia, and Protista D) Plant
sdas [7]
D. would be the answer because they are all within the eukaryote kingdom
8 0
3 years ago
A simple diagram of a DNA molecule is shown below. Which of the following is represented by X?
Reil [10]

Answer:

From the diagram X = <u>base pairs</u>

Explanation:

Genetic information stored within DNA is used for growth, reproduction, and cell repair. DNA, deoxyribonucleic acids, are long-chain, helical macromolecules made of specific sequences of covalently bonded monomers called nucleotides.

Nucleotides comprise:

  • a 5-Carbon deoxyribose sugar,
  • one nitrogenous base (adenine, guanine thymine, and cytosine)
  • and a phosphate group.

Nitrogenous bases cause nucleotides to form hydrogen bonds with other nucleotides as base-pairs. The four types of bases each make the nucleotides  Thymine and Cytosine (pyrimidine bases) along with Guanine,  and Adenine, (purine bases). In base-pair formation, Adenine forms double bonds with Thymine, and cytosine forms triple bonds with guanine.

4 0
3 years ago
Next in abundance of the organs composing the lymphatic system are the they are found throughout the body along the course of th
Dmitry_Shevchenko [17]
<span>Lymph nodes are abundant organs comprising a major part of the lymphatic system, and can indeed be found throughout the body, connected by the lymphatic vessels. However, the highest concentration of clustering occurs within in the inguinal region, cervical region, and axillary region.</span>
3 0
3 years ago
Other questions:
  • Which substances are most used as building blocks of in the synthesis of lipids
    15·1 answer
  • ​How does the electrochemical process help you?
    5·2 answers
  • If you were to graph the numbers of individual with a certain trait that followed a normal distribution, where on the graph woul
    12·1 answer
  • Salvador would like to take a paternity test to determine if he is Pilar’s father. He asks Pilar’s mother, Antonia, to provide D
    14·1 answer
  • When processing information from the environment, the brain acts much like a what?
    11·1 answer
  • 9. The Sun provides Earth with both light and thermal energy. Which of
    12·1 answer
  • How does waste in the ocean harm the hydrosphere?
    12·2 answers
  • Which group is within the Domain Eukarya?
    5·1 answer
  • Do producers in an ecosystem transfer all their energy to first-level consumers?
    14·1 answer
  • A zygote which has inherited an x chromosome from the father will develop into : baby boy baby girl adult either boy or girl.
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!