Answer:
Explanation:
Given that
We know that
By using energy conservation
Heat lost by water = Heat gain by block
Therefore the specific heat of the block will be 0.501 kJ/kg.K
Answer:
The Height of a pyramid is 4r.
Explanation:
Explanation is in the following attachments
If the resistance of the Air is ignored, we can use the theory given by Galileo in which he warned that the thermal velocity of a body in free fall was given by
Where
g = Gravitational acceleration
t = time
As we can see the speed of objects in free fall is indifferent to the position that is launched (as long as the resistance of the air is ignored) or its mass.
Both bodies will end with the same thermal speed.
Answer: If the balloon acquires charge, Sam's hair loses charge.
Explanation:
I JUST GOT THIS QUESTION RIGHT ON THE IA4 <3
Answer:
The potential energy is
Explanation:
From the question we are told that
The inner radius is
The outer radius is
The common length is
The potential difference is
Generally the capacitance of the cylindrical capacitor is mathematically represented as
Where is the permitivity of free space with the values
and k is the dielectric constant of the dielectric material here the dielectric material is free space so k = 1
Substituting values
The potential energy stored is mathematically represented as
substituting values