Answer:
Temperature is a measure of the average kinetic energy of the particles. Temperature is a measure of how hot or cold something is. Temperature is not the same thing as heat.
Explanation:
Answer:
it's option 2 : the medium increases in temperature while remaining in the same phase
Answer:
2315.8 m/s
Explanation:
For the charged particle to pass through this field undeflected, the electric force and the magnetic force acting on it must be equal
Electric force = Magnetic force
Electric force = Eq
Magnetic force = qvB
qvB = Eq
v = (E/B)
E = 440 N/C, B = 0.19 T
v = (440/0.19)
v = 2315.8 m/s
When a 10-kg block is simultaneously pushed toward the east with 20N and toward the west with 15N, the combination of these forces on the block is 5N toward the East
Let's understand this problem in detail
Let which is in east direction
and which is acting in the west direction
Now,
But and are in opposite direction.
So let's rotate the force vector by 180 degrees which becomes
Now both and are in same directionof the forces are in a single line
Adding both of them, we get
=
= 20N - 15N = 5N, as both of the forces are in east direction hence, the net force is also acting in the east driection
Learn more about forces here
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From the reaction, we see that for every 2 moles of Al
reacted, 852 kJ of energy is released. So convert the mass given to moles:
moles Al = 48.7 g / (26.98 g/mol)
moles Al = 1.805 mol
So the energy evolved is:
Energy = -852 kJ / 2 mol * 1.805 mol
<span>Energy = -769 kJ</span>