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
astra-53 [7]
3 years ago
14

When you shift your focus, everything you see is still in perfect focus. True or false

Engineering
2 answers:
denpristay [2]3 years ago
5 0

Answer:

true

Explanation:

true

MAXImum [283]3 years ago
5 0

Answer:

I believe this is true

Explanation:

If your looking at something and you look at something else everything is still in perfect view and clear, in focus.

hope this helps :)

You might be interested in
How can the use of local materials improve the standard of living of Filipinos?
Rudiy27
Choose a quality one, and don't use it as necessary
7 0
2 years ago
An exit sign must be:Colored in a way that doesn’t attract attentionIlluminated by a reliable light sourceAt least 3 inches tall
Ksenya-84 [330]

Answer:

Red

Explanation:

5 0
3 years ago
Stakeholders are people or organizations who do what?
Soloha48 [4]

Answer:

B. fund the project

D. are partners with a vested interest

Explanation:

If you look at the definition of the word stakeholder, these options match the definition which is why I chose B and D

4 0
3 years ago
Read 2 more answers
Indicate whether the following statements are true or false for an isothermal process: (A) Q=T(∆S). (B) ∆U=0.(C) The entropy cha
Lena [83]

Answer:

A=False

B=False

C=False

D=False

E=False

F=False

Explanation:

A. In an isothermal process, only the reversibly heat transfer is 0, Q_{rev}=T (\Delta S)

B. Consider the phase change of boiling water. Here, the temperature remains constant but the internal energy of the system increases.

C. This is not true even in reversible process, as can be inferred from the equation in part A.

D. This is only true in reversible processes, but not in all isothermal processes.

E. Consider the phase change of freezing water. Here, the surroundings are increasing their entropy, as they are taking in heat from the system.

F. This is not true if (\Delta U)\neq 0, like in answer B. One case where this is true is in the reversible isothermal expansion (or compression) of an ideal gas.

3 0
3 years ago
Air, at a free-stream temperature of 27.0°C and a pressure of 1.00 atm, flows over the top surface of a flat plate in parallel f
Morgarella [4.7K]

Answer:

Explanation:

Given that:

V = 12.5m/s

L= 2.70m

b= 0.65m

T_{ \infty} = 27^0C= 273+27 = 300K

T_s= 127^0C = (127+273)= 400K

P = 1atm

Film temperature

T_f = \frac{T_s + T_{\infty}}{2} \\\\=\frac{400+300}{2} \\\\=350K

dynamic viscosity =

\mu =20.9096\times 10^{-6} m^2/sec

density = 0.9946kg/m³

Pr = 0.708564

K= 229.7984 * 10⁻³w/mk

Reynolds number,

Re = \frac{SUD}{\mu} =\frac{\ SUl}{\mu}

=\frac{0.9946 \times 12.5\times 2.7}{20.9096\times 10^-^6} \\\\Re=1605375.043

we have,

Nu=\frac{hL}{k} =0.037Re^{4/5}Pr^{1/3}\\\\\frac{h\times2.7}{29.79\times 10^-63} =0.037(1605375.043)^{4/5}(0.7085)^{1/3}\\\\h=33.53w/m^2k

we have,

heat transfer rate from top plate

\theta _1 =hA(T_s-T_{\infty})\\\\A=Lb\\\\=2.7*0.655\\\\ \theta_1=33.53*2.7*0.65(127/27)\\\\ \theta_1=5884.51w

7 0
3 years ago
Other questions:
  • A Wheatstone bridge initially has resistances equal to R1 = 200Ω, R2 = 400Ω, R3=500Ω and R4=600Ω. For an input voltage of 5V, de
    12·1 answer
  • _______is defined as the use of statistical techniques to control a process or production method
    13·1 answer
  • The inlet for a high-bypass-ratio turbofan engine has an area A1 of 6.0 m 2 and is designed to have an inlet Mach number M~ of 0
    6·1 answer
  • Sewage is being treated in two aerated lagoons in series. Each lagoon has a surface area of 5 hectares (ha) and depth of 1 m, an
    12·1 answer
  • May you tell me the meaning of "Tolerance is a bitter tree, but its fruit is sweet "by Aristotle
    6·1 answer
  • What does 3CuCI2 mean
    11·1 answer
  • An engine has been diagnosed with blowby.
    12·1 answer
  • 2. An AC current of
    9·1 answer
  • Pls help :( I am a radio & audio production student, what are two examples of a complex wave.
    13·1 answer
  • Design a driver circuit that should drive a a seven segment to display octal numbers
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!