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
Licemer1 [7]
3 years ago
13

(This is rly for science but there’s no category for that) Which statement best describes how scientists and engineers work toge

ther
in the research and development cycle?
O A. Engineers come up with scientific questions when they are
developing their design, and scientists do research to answer
them.
O B. Scientists test designs made by engineers and then use the
results to improve the designs.
C. Scientists develop a new technology, and then engineers test it by
doing experiments.
D. Engineers make a scientific discovery, and then scientists perform
research to verify it.
Chemistry
1 answer:
nirvana33 [79]3 years ago
5 0

Answer:

A.  Engineers come up with scientific questions when they are developing their design, and scientists do research to answer them.

You might be interested in
What could happen if the chemists do not follow the exact formula for medications? (Give examples)​
nataly862011 [7]

Answer:

qwe

Explanation:

wqe

3 0
3 years ago
One mole of an ideal gas, for which CV,m = 3/2R, initially at 298 K and 1.00 × 105 Pa undergoes a reversible adiabatic compressi
oksian1 [2.3K]

Answer:

  • final temperature (T2) = 748.66 K
  • ΔU = w = 5620.26 J
  • ΔH = 9367.047 J
  • q = 0

Explanation:

ideal gas:

  • PV = RTn

reversible adiabatic compression:

  • δU = δq + δw = CvδT

∴ q = 0

∴ w = - PδV

⇒ δU = δw

⇒ CvδT = - PδV

ideal gas:

⇒ PδV + VδP = RδT

⇒ PδV = RδT - VδP = - CvδT

⇒ RδT - RTn/PδP = - CvδT

⇒ (R + Cv,m)∫δT/T = R∫δP/P

⇒ [(R + Cv,m)/R] Ln (T2/T1) = Ln (P2/P1) = Ln (1 E6/1 E5) = 2.303

∴ (R + Cv,m)/R = (R + (3/2)R)/R = 5/2R/R = 2.5

⇒ Ln(T2/T1) = 2.303 / 2.5 = 0.9212

⇒ T2/T1 = 2.512

∴ T1 = 298 K

⇒ T2 = (298 K)×(2.512)

⇒ T2 = 748.66 K

⇒ ΔU = Cv,mΔT

⇒ ΔU = (3/2)R(748.66 - 298)

∴ R = 8.314 J/K.mol

⇒ ΔU = 5620.26 J

⇒ w = 5620.26 J

  • H = U + nRT

⇒ ΔH = ΔU + nRΔT

⇒ ΔH = 5620.26 J + (1 mol)(8.314 J/K.mol)(450.66 K)

⇒ ΔH = 5620.26 J + 3746.787 J

⇒ ΔH = 9367.047 J

8 0
3 years ago
Which of the following statements is TRUE?
Alexxx [7]

Explanation:

I'll give you a real answer later need points for test questions sorry!!!!!!

8 0
3 years ago
I WILL GIVE 50 POINTS AND BRAINLIEST TO WHO EVER ANSWERS THIS RIGHT AND FAST!!! PLS!!!!
poizon [28]

The answer is D

I took the test and I got this answer, it was correct :)

I don’t care if I get brainliest I just want to help

4 0
3 years ago
Read 2 more answers
Due tonight! Please help!
olchik [2.2K]

Answer:

42.98 g/L

Explanation:

6 0
3 years ago
Other questions:
  • Need this ASAP!
    5·1 answer
  • What is the difference between electron configuration and valence electron configuration?
    14·1 answer
  • What type of chemical bond would form between an atom of carbon (C) and an atom of nitrogen (N). Explain specifically why this t
    5·1 answer
  • Samantha is making a vegetable soup that contains carrots, beans, water, salt, pepper, bits of ham, and onions. the soup has to
    9·1 answer
  • Which is the next logical step in balancing the given equation?
    5·2 answers
  • 50 POINTS!!!!!
    10·2 answers
  • Please help me do it dont worry the answers are their just put them in theright place
    8·1 answer
  • What is true about constructive interference?A.Amplitudes in the opposite direction interfere to make larger waves.B.Amplitudes
    8·1 answer
  • Which of the following about a balanced chemical reactions is
    10·1 answer
  • How many zeroes are significant in the measurement 0.0400200?
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!