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
AleksAgata [21]
4 years ago
14

In two or more complete sentences, describe the purpose and outcome of the Miller Urey experiment.

Physics
1 answer:
Rama09 [41]4 years ago
7 0
<span>Miller Urey experiment's purpose was to test the chemical origin of life under the conditions supposed to be present on the early Earth. 
</span>The scientists Miller and Urey heated a mixture of water<span>, </span>ammonia<span>, </span>methane<span> and </span>hydrogen<span> in a sterile flask until it evaporated water to produce water vapour. </span><span>Electric sparks were passed through the mixture of </span>water vapour and gases, simulating lightning. The experiment was done during one week. After a week, the contents were analysed and Miller and Uray proved that <span>several organic compounds could be formed spontaneously by simulating the conditions of Earth's early atmosphere.</span> 
You might be interested in
32. For each of the listed parts of a power plant, make a selection to indicate in what
k0ka [10]

Answer: a. boiler - I. part of a coal-fired power plant.

b. combustion chamber - I. part of a coal-fired power plant.

c. condenser - III. part of a coal-fired power plant and part of a nuclear power plant.

d. control rod - I. part of a coal-fired power plant.

e. generator- III. part of a coal-fired power plant and part of a nuclear power plant.

f. turbine - III. part of a coal-fired power plant and part of a nuclear power plant.

Explanation:

a. Boiler: It is used in the coal power plant to heat the water used for producing electricity. The boiler keeps the temperature of water or steam at a desired level.

b. Combustion chamber: It is used for combustion of coal and using thermal energy for electricity generation.

c. Condenser; It is used in both nuclear and coal power plants. It condense and receive from the turbine.

d. Control rod: It is used in the nuclear power plant for controlling the nuclear fission and fusion reactions of heavy metals.

e. Generator: It converts the thermal energy into electrical energy.

f. Turbine: The turbine blades move with the effect of steam or any form of energy and the energy so produce is used for generating electricity in generator.

7 0
3 years ago
What is the power output of an electric motor
8090 [49]
Mass of the block = 2.0 kg
Value of gravity = 9.81 m/s^2
Distance upto which the mass is lifted = 15 meters
Time taken to lift the mass of the block = 6.0 seconds
Now we already know
Work Done = Mass * Gravity * Distance
                   = 2 * 9.81 * 15
                   = 294 Joules
Then
Power Output = Work Done/Time
                       = 294/6
                       = 49 Watts
So the power output of the electric motor is 49 watts.The correct option among all the options given in the question is option "4".
6 0
4 years ago
in the history of astronomy, which of the following is true? a. galileo galilei was a student of tycho brahe. b. johannes kepler
bija089 [108]
C. Ptolemy argued that earth was the center of the universe
7 0
3 years ago
An electric toaster is rated 1200 watts at 120 volts. what is the total electrical energy used to operate the toaster for 30 sec
Tresset [83]

Answer : Total electrical energy is 36000 J.

Explanation :

It is given that,

Power of electric toaster, P = 1200 Watts

Voltage, V = 120 Volts

Time, t = 30 s

Electric energy is defined as the product of the power and the time taken.

E=Pt

E=1200\ W\times 30\ s

E=36000\ J

Total electrical energy used to operate the toaster for 30 seconds is 36000 J.

8 0
4 years ago
Read 2 more answers
Which is developed during the process of technology design
Tatiana [17]

Answer:

solution

Explanation:

A(n) __________ is developed during the process of technological design.

4 0
3 years ago
Other questions:
  • Before CDs and cassette tapes, there were vinyl records. The most comon spun with an angular velocity of 33.3revolutionsperminut
    15·1 answer
  • Matter's resistance to a change in motion is called _____ and is directly proportional to the mass of an object
    11·1 answer
  • PLEASE HELP AND BE RIGHT
    15·2 answers
  • What is precision in physics​
    14·1 answer
  • List three effects that an increase in urbanization can have on air quality
    13·1 answer
  • In addition to average weather conditions, climatological data also describes annual variations and fluctuations of temperature,
    13·1 answer
  • While standing at the edge of the roof of a building, a man throws a stone upward with an initial speed of 6.63 m/s. The stone s
    12·1 answer
  • 8. A rocket has a mass of 1200 kg. It is launched with an initial thrust of 20000 N. The air resistance at
    15·1 answer
  • What is the mass of an object that has a weight of 110N ?
    15·1 answer
  • A 60.0-kg skater begins a spin with an angular speed of 6.0 rad/s. By changing the position of her arms, the skater decreases he
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!