Answer:
=9696.5J
Explanation:
The latent heat of fusion of a unit mass of copper is the heat released when it changes from its molten state to solid state of the heat absorbed to melt it.
The total energy released is calculated using MLf where M is the mass of the copper and Lf is the latent heat of fusion.
=mLf
=47.30 grams×205.0J/g
=9696.5J
KE=(1/2)mv² ⇒ v=√(2KE/m)
Data:
KE=kenetic energy=810 J
m=mass=80 Kg
v=velocity (speed)
v=√(2KE/m)
v=√(2*810 J/80 Kg)=4.5 m/s.
answer: his speed is 4.5 m/s.
Hydrogen = 1
oxygen = 8
but then remember the 2
hope that kinddaaa helps xoxo
Answer:
we can see that block is accelerating with more acceleration and hence it will reach the bottom first
Explanation:
As we know that cylinder is rolling without slipping on the inclined plane
So the acceleration of the cylinder is given as
so we know that
so we have
Now the acceleration of block which is slipping on the floor
so here we can see that block is accelerating with more acceleration and hence it will reach the bottom first
Answer:
If there isn't this type of mechanism, the whole setup will blow even if only one lamp burns out. Doing this mechanism is to decrease the overall resistance resulting in an increased current (Since resistance and current are inversely related) which is the best to blast the fuse.