Answer:
Momentum must be conserved in the collision.
The steel block must move faster after the collision to preserve momentum.
If the steel block is moving faster it will aso have more kinetic energy.
(Note; If the bullet hits the steel block it will have some momentum in the reverse direction and thus have a greater change in total momtntum than the bullet that becomes imbedded in the wood block)
To find information, the would take DNA tests.
My answer is "Watt per square meter".
Answer: Approximately 65% from what i have learnt.
Its resistor :}...............
