The total kinetic energy of the system after collision is 223.5J
In elastic collision kinetic energy and momentum are conserved.
According to the question
mass of object a = 25kg
mass of object b = 25 kg
initial velocity of a u1 = 5.98 m/s
initial velocity of b u2 = 0
so from momentum conservation-
mau1 + mbu2 = (m1+m2)v
25kg × 5.98m/s + 25×0 = (25+25)v
v = 2.99 m/s
Now the total kinetic energy after the collision will be:
final kinetic energy = 1/2 (m1+m2) v²
= 1/2 (25+25)× (2.99)²
= 223.5 J
Thus, total kinetic energy of the system after collision is 223.5J
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Answer:
16.7
Explanation:
Mechanical advantage is the ratio of the output force to the input force.
MA = Fout / Fin
MA = 2000 N / 120 N
MA ≈ 16.7
A) gneiss
Explanation:
The likely rock that would be found here is gneiss.
A rock type that forms under a great deal of temperature and pressure is a metamorphic rock.
Such rocks would have their minerals crystallized when subjected to these extreme conditions.
- Metamorphic rocks are changed rocks that are formed when minerals in rocks are subjected to extreme pressure and temperature before they start melting.
- These rock type can form from either sedimentary or igneous rocks. In fact a metamorphic rock can also change into another one.
- Examples of metamorphic rocks are gneiss, schist, hornfels, marble etc.
Halite, limestone and sandstone are examples of sedimentary rocks that forms by the accumulation of sediments or precipitation of ions form solutions.
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Answer:
(a) The maximum conduction current is A
(b) Value of V
(c) Maximum value of
Explanation:
Given:
Radius of circular plates m
Separation between plates m
Frequency Hz
Maximum displacement current A
(a)
Displacement current is equal to the conduction current so we write,
A
(b)
From the formula of displacement current,
Where , peak value of emf,
V
(c)
From another formula of displacement current,
Where change in flux
Therefore, the maximum conduction current is A and value of
V and maximum value of
Answer:
50 grams,0.5 kilograms, 1000 grams, 5 kilograms
Explanation:
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