The answer's 25,000 joules
half m v squared
half 2000, x 5 squared
Answer:
Option A is the correct answer.
Explanation:
Here momentum is conserved.
That is 
Substituting values

Speed of block A after collision = 10 m/s
Option A is the correct answer.
Answer:The Earth’s revolution and tilt cause the cycle of the seasons on Earth.
Explanation:
Explanation:
Both oceanic crust and continental crust are less dense than the mantle, but oceanic crust is denser than continental crust. ... Because continental crust is less dense than oceanic crust it floats higher on the mantle, just like a piece of Styrofoam floats higher on water than a piece of wood does.
The continental crust is by far the older of the two types of crust.
Hope this helps you out ; )
So, for the visible range, the colors are arranged in order of increasing frequency like this: Red < Orange<span> < </span>Yellow<span> < Green < Blue < Indigo < </span>VIolet<span>.</span>