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
galben [10]
3 years ago
10

7 Single-use earplugs require a professional fitting before they can be used.

Engineering
2 answers:
Gnom [1K]3 years ago
6 0
False because they are probably foam and will fit anyone
N76 [4]3 years ago
5 0
I believe it is false
You might be interested in
Are front-end engineers starting to decline in China?
laiz [17]

Yes. They are declining in China. Very fast

7 0
3 years ago
(a) For a given material, would you expect the surface energy to be greater than, the same as, or less than the grain boundary e
aksik [14]

Answer:

(a) Surface energy is greater than grain boundary energy due to the fact that the bonds of the atoms on the surface are lower than those of the atoms at the grain boundary. The energy is also directly proportional to the number of bonds created.

(b) The energy of a high-angle grain boundary is higher than that of a small-angle grain boundary because the high-angle grain boundary has a higher misalignment and smaller number of bonds than a small-angle grain boundary.

Explanation:

(a) Surface energy is greater than grain boundary energy due to the fact that the bonds of the atoms on the surface are lower than those of the atoms at the grain boundary. The energy is also directly proportional to the number of bonds created.

(b) The energy of a high-angle grain boundary is higher than that of a small-angle grain boundary because the high-angle grain boundary has a higher misalignment and smaller number of bonds than a small-angle grain boundary.

5 0
2 years ago
A good rule of thumb in hazardous conditions is to _____.
Aloiza [94]

Answer:

C. Have your hazard lights on

Explanation:

Speeding up will cause an accident

Counter steering is not easy to do

Slowing down my result in you being rear ended

5 0
2 years ago
Read 2 more answers
Electric current originates from which part of an atom? *
yanalaym [24]

Answer: Electric current originates from positively charged protons negatively charged electrons of an atom.

Explanation:

The movement of ions (positive or negative) from one point to another is called electric current.

An atom has three sub-atomic particles. These are protons, neutrons and electrons.

Protons are positively charged, neutrons have no charge and electrons are negatively charged. Protons and neutrons reside inside the nucleus of an atom whereas electrons revolve around the nucleus.

So, protons and electrons are responsible for originating electric current form an atom as these are the charged particles.

Thus, we can conclude that electric current originates from positively charged protons negatively charged electrons of an atom.

3 0
2 years ago
Who is ur face actor
olchik [2.2K]

Answer:

lOUIS

Explanation:

7 0
3 years ago
Other questions:
  • For the pipe-fl ow-reducing section of Fig. P3.54, D 1 5 8 cm, D 2 5 5 cm, and p 2 5 1 atm. All fl uids are at 20 8 C. If V 1 5
    10·1 answer
  • Which of the following is an example of seeking accreditation?
    7·1 answer
  • A Carnot engine is operated between two heat reservoirs at temperatures of 520 K and 300 K. It receives heat from the 520 K rese
    8·1 answer
  • A reversible refrigeration cycle operates between cold and hot reservoirs at temperatures TC and TH, respectively. (a) If the co
    6·1 answer
  • A local surf report provides the height of the wave from the trough to the crest of the wave. How does this relate to the wave’s
    11·1 answer
  • Please choose a specific type of stability or control surface (e.g., a canard) and explain how it is used, what it is used for,
    5·1 answer
  • HOW TO CALCULATE MARGINAL RATE
    9·1 answer
  • Advanced manufacturing does NOT serve the transportation, communications, or medical industries. Is this statement TRUE or FALSE
    11·2 answers
  • Engine horsepower decreases ________% for every___________feet above sea level.
    9·1 answer
  • Which of the following is NOT associated with Urban Sprawl?
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!