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
Marta_Voda [28]
2 years ago
14

What the type of solid materials are typically hard, have high melting pionts and poor electrical conductivities ?

Biology
1 answer:
kondaur [170]2 years ago
7 0

Answer:

Ionic compounds

Explanation:

Ionic crystals are hard and brittle and have high melting points.

You might be interested in
What are type II restriction endonucleases? Why are they
Karolina [17]

Answer:

DNA.

Explanation:

Type II restriction endonucleases always cleave at or near their recognition sites. They produce small, well-defined fragments of DNA that help to characterize genes and genomes and that produce recombinant DNAs.

7 0
3 years ago
What tragedy led to the formation of the Andrew "Red" Harris Foundation?
strojnjashka [21]

Answer:

Tragically, Andrew died after being struck by a boat while snorkeling on June 8, 2014. Andrew's family and friends formed the Andrew “Red” Harris Foundation to make sure he would not be forgotten and to build his legacy.

Explanation:

Hope this helps:)

4 0
3 years ago
Why is the back-work ratio much higher in the brayton cycle than in the rankine cycle?
Ivanshal [37]

The back-work ratio much higher in the brayton cycle than in the rankine cycle because a gas cycle is the Brayton cycle, while a steam cycle is the Rankine cycle. Particularly, the creation of water droplets will be a constraint on the steam turbine's efficiency. Since gas has a bigger specific volume than steam, the compressor will have to work harder while using gas.

Recall the steady flow device's shaft work expression.

W =-∫ V dP +...

As it is in the pump (liquid) compared to turbine (superheated vapor) in the Rankine cycle, the specific volume in the compressor is not significantly less than the specific volume in the turbine in the Brayton cycle.

A thermodynamic cycle that transforms heat into mechanical energy is the Rankine cycle, often known as the Rankine vapor cycle.

The operation of various heat engines that use air or another gas as their working fluid is described by the Brayton cycle, a thermodynamic cycle.

Learn more about Rankine cycle here brainly.com/question/24050955

#SPJ4

3 0
1 year ago
which of the following statements about of matter is true? a. a gas has a definite volume but not a definite shape. b. a liquid
Sever21 [200]

I believe the answer is B.

6 0
3 years ago
In the guppie simulation, what happens to the brightest guppies when there are large numbers of predators?
jonny [76]
In the simulation, the brightness of the guppies is directly related to how fast they are consumed by predators. This phenomenon is explained simply and reflects natural selection. The brighter guppies are at a selective disadvantage due to the ease with which predators are able to spot them. The darker colored guppies are able to avoid predator better so they live fore a longer time.
<span />
5 0
3 years ago
Other questions:
  • below is a table of organisms information on their characteristics. based on the information in the table which organism is like
    6·1 answer
  • Which of these statements about the hip joint is false? It permits circumduction.
    13·1 answer
  • What traits are taken into consideration during classification in plants
    5·2 answers
  • Currently, there are no known risks in genetically modifying crop species. TRUE FALSE
    10·1 answer
  • Eukaryotes that are not members of the plant, animal, and fungi kingdoms are called ____.
    15·2 answers
  • C. Read the hypotheses below, and identify the
    11·1 answer
  • No links please!!!!!
    5·1 answer
  • how can geography provide information about the past histories of both living and the surface of Earth?
    12·1 answer
  • Mark
    12·1 answer
  • Please can someone answer this question ​
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!