Answer: Option (A) is the correct answer.
Explanation:
It is known that metals are malleable and ductile. Whereas non-metals are neither malleable nor ductile.
On the other hand, metalloids are the elements which contain properties similar to both metals and non-metals.
Therefore, if a material is ductile, it is most likely a metalloid because it is not necessary that ductility is a property shown by metals only.
Wherease like non-metals, noble gases are also neither malleable nor ductile.
A. Metalloid this is your answer plz click brainly-ist
Answer:
So option (b) will be correct option
Explanation:
We have given that there is a step up transformer in which number of turns in primary coil is 15
That is,
Primary voltage , and secondary voltage
We have to find the number of turns in the secondary \
We know that for the transformer
So option (b) will be correct option
inflation theory
steady state theory
big bang theory
Answer: oscillating universe theory
Explanation:
The Oscillating Universe Theory suggests that for every big bang there is a big crunch, imagining the universe as undergoing endless cycles of expansion and contraction.
The theory that suggests that for every big bang, there is a big crunch is known as the oscillating universe theory. This theory proposes that the universe undergoes endless cycles of expansion (Big Bang) and contraction (Big Crunch). It's like a ongoing cosmic heartbeat, where our universe alternatively expands and contracts.
The other three theories mentioned, the inflation theory, the steady state theory, and the big bang theory, each have their own illustrations of the universe's formation. None of them, however, necessarily involve the concept of a big crunch following a big bang.
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The average speed is found when we divide the distance traveled (Δx) by the travel time (Δt).
The formula is:
Solving:
Data:
We have:
The average speed of the boy for his journey is approximately2,67m/s.
_________
Know more:
Hope this helps!
B.The work done is equal to the change in heat energy.
C.The work done is equal to change in entropy.
D.The work done is equal to the change in pressure.
For an isothermal process, the work done by or on a system of ideal gas is equal to the change in heat energy. The correct option is B.
The process in which the temperature remains constant and other physical quantities are variable, is called the isothermal process.
From the first law of thermodynamics, the work done is the difference between heat supplied and change in internal energy of the system.
W = ΔQ - ΔU
For isothermal process, change in internal energy will be zero.
So, work done is equal to the change in heat energy.
Thus, the correct option is B.
Learn more about isothermal process.
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b) cooled
c) warmed
d) unchanged
When a refrigerant condenses, the surrounding air is warmed. The correct option is c.
The refrigerant is a working fluid in a refrigerator which is capable of changes of phase at low temperatures.
A refrigerator undergoes a vapor compression refrigeration cycle using the working fluid.
When a refrigerant condenses, the surrounding air is warmed.
Thus, the correct option is c.
Learn more about refrigerant
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