Heat capacity of body 1 :
Heat capacity of body 2 :
it's given that, the the head capacities of both the objects are equal. I.e
Now, consider specific heat of composite body be s'
According to given relation :
[ since, ]
➖➖➖➖➖➖➖➖➖➖➖➖➖➖➖➖➖
The answer is A) 1000 J
According to the law of conservation of energy, the total energy before an action is always equal to the total energy after the action.
So that is, the total energy is 8000J found as potential energy, 7000J has transformed into kinetic energy, then the thermal energy should be the remaining 1000J.
Hope this helps.
Answer:
9.8 secs
Explanation:
the ball is in the air so it takes 9.8 secs to get to the ground
I uploaded the answer to a file hosting. Here's link:
tinyurl.com/wpazsebu
Well, if a charger conductor is touched to another object or close enough to touching the object then the conductor can transfer its charge to that object. Conductors allow for electrons to be transported from particle to particle, so a charged object will always distribute its charge until the repulsive forces are minimized.