Al- 28
B- 11
C- 14
Sc- 46
Na- 24
Mass number= proton+neutrons
Answer:
The pump work is 3451 kJ/s
Explanation:
Pump work (W) is calculated as
where
is the enthalpy of water at its final state
is the enthalpy of water at its initial state
is water mass flow
For liquids, properties are evaluated as saturated liquid. From the figure attached, it can be seen that
Replacing
Answer:
The answer is
<h2>877 g</h2>
Explanation:
The mass of a substance when given the density and volume can be found by using the formula
<h3>mass = Density × volume</h3>
From the question
density = 19.3 g/cm³
volume = 44.9 cm³
The mass of the gold bar
mass = 19.3 × 44.9 = 866.57
We have the final answer as
<h3>877 g</h3>
Hope this helps you
