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➷ The speed would reduce as glass is denser than air.
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Answer:
Explanation:
We know that the pressure can be calculated in the following way:
p = d·g·h
with d being the density of the water, g the gravitational acceleration and h the depth.
Also d of the water = 1000 kg/m^3 circa and g = 9.8 m/s^2 circa
117,500 Pa = 1000kg/m³ · 9.8m/s² · h
Therefore h = 11,9 m
Heat = change in internal energy + Work done The internal energy of a system = heat added and mechanical work done by the system, i.e. U = Q + W rearranging the formula above, will give us: Q = deltaU + W
Q = U - W = 604 kJ - 43.0 kJ = 561,000 J would be the answer.
Answer:
Can you explain more in detail what it is?
Explanation:
Answer:
2A
Explanation:
The resistance of a wire can be defined as
R = ρL/A
Where,
ρ is Resistivity - the factor in the resistance which takes into account the nature of the material is the resistivity
L is Length of the conductor
A is Area of cross section of the conductor.
R₁/R₂ = (L₁/L₂) × (A₂/A₁) ----> rearranging it for A
A₂ = (R₁/R₂) × (L₂/L₁) × A₁
A₂ = (R/R) × (2L/L) × A
A₂ = 2A
Therefore, cross section area of another conductor must be 2A
