Heat that flows by conduction is the transfer of thermal energy between substances in contact. For this to happen, what must occur?A) The two systems must be the same temperature.
B) The two systems must not be touching each another.
C) One system must have higher kinetic energy than the other system.
D) The thermal energy of one system must be the same as the thermal energy of the other system.

Answers

Answer 1

Answer: I think the correct answer from the choices listed above is option C. In order for conduction to occur, it must be that one system must have higher kinetic energy than the other system. Or one system should have higher temperature than another system. This is the driving force of the transfer that occurs.

Answer 2

Answer: C) One system must have higher kinetic energy than the other system

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List two reasons why amphibians must live in moist environment.

In what ways are the three groups of amphibians similar different

Answers

The three groups of amphibians: Salamanders, Frogs, and Caecilians are different because they look different as adults. Salamanders have tails and they have four weak short limbs that allow them to walk instead of jump. Frogs have fours legs with strong hind legs and no tails. Caecilians have no legs and they are burrowing animals.

A physical environment with different species that interact with one another and with nonliving things is called

Answers

Answer:

A physical environment with different species that interact with one another and with nonliving things is called an ecosystem.

Ecosystem is the functional unit of nature. An ecosystem can be different in size according to the communities living in that ecosystem. Abiotic and biotic components together make an ecosystem.

Chemical and physical factors come under abiotic components. Physical components like water, air, light, temperature have more effects on the ecosystem than chemical factor.

Organisms are the biotic component of an ecosystem. They can be autotrophs or heterotrophs. Many organisms make a population, many populations combine to form community and many communities combine to form an ecosystem.

Organism↔Population↔Community↔Ecosystem

A physical environment with different species that interact with one another and with non-living thing is called an ecosystem

In the diagram, AC¯¯¯¯¯ is a diameter of the circle with center O. If m∠ACB = 50°, solve for m∠BAC.A. 50°
B. 40°
C. 80°
D. 100°

Answers

Answer;

B. 40°

m∠BAC = 40°

Explanation;

In the question AC is the diameter of the circle.
ACB is a triangle with angles m∠BAC, m∠ACB and m∠ABC.
Angles subtended by a diameter to the circumference of a circle is always right angle or 90 degrees.
Therefore, angle m∠ABC, which is subtended by diameter AC to the circumference is 90 degrees.

But, angles in a triangle adds up to 180 degrees, therefore;

m∠BAC = 180 - (m∠ACB + m∠ABC)

= 180 - (50 + 90)

= 180 - 140

= 40°

Thus; m∠BAC = 40°

The solution of m∠BAC is mathematically given as

m∠BAC = 40°. This is further explained below.

What is angle

The angle formed by two crossing lines or surfaces, commonly expressed as a number of degrees.

What is the solution of m∠BAC?

Generally, the equation for angle m∠BAC is mathematically given as

m∠BAC = 180 - (m∠ACB + m∠ABC)

m∠BAC = 180 - (50 + 90)

m∠BAC = 40°

In conclusion, m∠BAC = 40°

Read more about angle

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Which organ system is responsible for transporting oxygen throughout the human body?A. digestive system
B. respiratory system
C. circulatory system
D. excretory system