Estimate the heat required (in Joules) to heat a 450 g of water from 15 °C 1000g ) (1L = 1000 ml) %3D

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Chapter14: Fluid Mechanics
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15
Estimate the heat required (in Joules) to heat a 450 g of water from 15 °C to 55 °C.
( 1kg
= 1000g ) (1L= 1000 ml)
Transcribed Image Text:15 Estimate the heat required (in Joules) to heat a 450 g of water from 15 °C to 55 °C. ( 1kg = 1000g ) (1L= 1000 ml)
Consider two identical dams with the exception that the water reservoir behind dam A extends
twice the horizontal distance behind it as that of dam B. Which one of the following statements
regarding these dams is correct?
A) The force exerted by the water on dam A is greater than that on dam B.
B) The force exerted by the water on dam B is greater than that on dam A.
C) Dam A is more likely to collapse than dam B if the water level rises.
D) Dam B is more likely to collapse than dam A if the water level rises.
E) The horizontal distance of the water behind the two dams does not determine the force on them
3.
Transcribed Image Text:Consider two identical dams with the exception that the water reservoir behind dam A extends twice the horizontal distance behind it as that of dam B. Which one of the following statements regarding these dams is correct? A) The force exerted by the water on dam A is greater than that on dam B. B) The force exerted by the water on dam B is greater than that on dam A. C) Dam A is more likely to collapse than dam B if the water level rises. D) Dam B is more likely to collapse than dam A if the water level rises. E) The horizontal distance of the water behind the two dams does not determine the force on them 3.
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