Answer:
The answer is below
Explanation:
The main difference between a liquid and a gas is that when a liquid is under pressure, its volume "won't change apparently. The reason is that the distance between the molecules of a liquid is relatively small, and the molecules of a liquid extensively withstand the compressive forces. This is similar to the distance between the molecules of a solid."
Answer:
B.The galaxies are moving away from us.
Explanation:
Universe is expanding from the time of Big bank.
AS the universe expand Galaxies get away from each other.Latest studies stay that the acceleration of universe is uncreasing due to Dark Energy.
Technological systems are sets of interconnected components that transform, store, transport, or control materials, energy, and/or information for particular purposes. In any system, how the parts work together is as important as their individual characteristics.
Important technological systems concepts include:
<span>input, output, transformation, and control<span>"black box”</span><span>redundancy and reliability</span>operational parameters.</span>
System design, development, maintenance, and troubleshooting require the use of specialised language and representations.
Answer:
1964.8 J
1150 Joules
Explanation:
m = Mass of bullet = 0.5 kg
= Change in temperature = (327-20)
c = Specific heat of lead = 128 J/kg °C
=
= Latent heat of fusion of lead =
(Values taken from properties of lead table)
Heat is given by
The heat needed to raise the bullet to its final temperature is 1964.8 J
Change in volume is given by
The volume of the bullet when it comes to rest is
Heat needed for melting
The additional heat needed to melt the bullet is 1150 Joules