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
tiny-mole [99]
3 years ago
10

True/False:Scientific endeavor should always be pursued, regardless of the known trade offs associated with the research.

Physics
1 answer:
julsineya [31]3 years ago
5 0
False because their are ethical boundaries that prevent full range of scientific research. 
You might be interested in
An engine draws energy from a hot reservoir with a temperature of 1250 K and exhausts energy into a cold reservoir with a temper
dimulka [17.4K]

Answer:

The power output of this engine is  P =  17.5 W

The  the maximum (Carnot) efficiency is  \eta_c  = 0.7424

The  actual efficiency of this engine is  \eta _a  = 0.46

Explanation:

From the question we are told that

    The temperature of the hot reservoir is  T_h = 1250 \ K

      The temperature of the cold reservoir  is  T_c  =  322 \ K

     The energy absorbed from the hot reservoir is E_h  = 1.37 *10^{5} \ J

       The energy exhausts into  cold reservoir is  E_c  = 7.4 *10^{4} J

The power output is mathematically represented as

      P  =  \frac{W}{t}

Where t is the time taken which we will assume to be 1 hour =  3600 s  

W is the workdone which is mathematically represented as

      W =  E_h  -E_c

substituting values

       W = 63000 J

So

    P =  \frac{63000}{3600}

    P =  17.5 W

The Carnot efficiency is mathematically represented as

          \eta_c  =  1 - \frac{T_c}{T_h}

         \eta_c  =  1 - \frac{322}{1250}

         \eta_c  = 0.7424

The actual efficiency is mathematically represented as

        \eta _a  =   \frac{W}{E_h}

substituting values

         \eta _a  =  \frac{63000}{1.37*10^{5}}

         \eta _a  = 0.46

     

7 0
3 years ago
All organisms in Kingdom Animalia are multicellular, meaning their bodies are composed of more than one cell. Which other charac
k0ka [10]
Well,

For the first one, the answer would be C, because all organisms in Kingdom Animalia must eat in order to survive.

For the second one, all of the options are in Kingdom Animalia, but worms (A) and clams (C) are invertebrates.  So that leaves options B and D.
4 0
3 years ago
Read 2 more answers
1. Different amount of energy is transferred to different parts of an electric circuit. *
Evgesh-ka [11]

Answer:

True

Explanation:

7 0
3 years ago
The standard metric unit of density for a solid is
prisoha [69]
There is no SI "base unit" of density.
(Any unit of mass) divided by (any unit of volume) is
a valid unit of density.

The units of density that are seen most often are

(gram per cm³) and (kgm per meter³) .
5 0
3 years ago
What kind of electromagnetic radiation could be used to see molecules
Vera_Pavlovna [14]

Answer:

X ray

Explanation:

To see an object the light used must have the same or smaller wavelength than the object. The size of an atom is about 10^{10} m, smaller than the wavelength, therefore we'll need radiation with a shorter wavelength <em>since X-ray wavelengths are about the same size as atoms this characteristic makes it ideal to use.</em>

I hope you find this information useful nd interesting! Good luck!

4 0
3 years ago
Other questions:
  • The following table lists the work functions of a few commonmetals, measured in electron volts.
    14·1 answer
  • A thin copper rod 1.0 m long has a mass of 0.050 kg and is in a magnetic field of 0.10 t. What minimum current in the rod is nee
    15·1 answer
  • A paper filled capacitor is charged to a potential difference of 2.1 V and then disconnected from the charging circuit. The diel
    15·1 answer
  • In the illustration, which two simple machines are being used to enable the student to reach the door?
    12·2 answers
  • A car accelerates from 0 to 72 km/ hour in 8 sec. what is the cars acceleration?
    12·1 answer
  • The buildup of plaque on the walls of an artery may decrease its diameter from 1.1cm to 0.75 cm. If the speed of blood flow is 1
    11·1 answer
  • After a marathon many runners are given a shiny, aluminium blanket to wrap around their bodies. Explain why the blanket is shiny
    5·1 answer
  • It took 3.5 hours for a train to travel the distance between two cities at a velocity
    5·1 answer
  • Help me fast!!!
    11·2 answers
  • Someone please help me!
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!