In order to increase thermal energy, the temperature must <span>increase</span>
Answer:
The total momentum of the system before the collision is 5.334 kg-m/s towards left.
Explanation:
Given that,
Mass of the block A, 
Speed of block A, 
Mass of the block B, 
Mass of block B, 
Let p is the total momentum of the system before the collision. It is given by :

So, the total momentum of the system before the collision is 5.334 kg-m/s towards left. Hence, this is the required solution.
Let the beam is of length L
Now the stress on both the end is same
now we can say that torque on the beam due to two forces must be zero

also we know that stress at both ends are same


Now from two equations we have

solving above equation we have

<em>so the load is placed at distance 0.4L from the end of 12 mm^2 area</em>
The correct answer is letter A
The answer is A
Explanation: the conservation of matter means that the mass stays the same