The cosmic microwave background<span> (CMB) is electromagnetic </span>radiation<span> as a remnant from an early stage of the universe in Big Bang cosmology. In older literature, the CMB is also variously known as </span>cosmic microwave background radiation<span> (CMBR) or "relic </span>radiation<span>"</span>
Answer:
Isothermal Process
Explanation:
In this process heat is released or absorbed by the system happens at very slow rate in order to continually maintain the temperature of the system through heat exchange. so ΔT = 0 ⇒ ΔU =0
First law of Thermodynamics ΔQ = ΔU + ΔW
⇒ ΔQ = ΔW
e.g Carnot Cycle
Explanation:
Volume = length × breadth × height
= 5m × 1.2m ×(75÷100)m
= 4.5 m^3
Answer:
The answer is Friction.
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Answer:
Explanation:
Hello!
In this case, since equilibrium temperature problems involve the mass, specific heat and temperature change for the substances at different temperatures, we can write:
Thus, since we are talking about water and they both have the same specific heat, we can write:
Now, we plug in the temperatures to obtain:
Next, since the total volume of water is 800 L, since it has a density of 1kg/L, we infer the total mass is 800 kg; that is why we can write a 2x2 system of simultaneous equations:
Thus, the masses of both cold and hot water turn out:
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