What did Blaise Pascal’s discover in 1653?

What will be an ideal response?


He discovered that pressure applied to a confined fluid is transmitted equally
and undiminished in all directions and the resultant forces act upon the surfaces in
a container at right angles

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In this problem, water is used to cool saturated steam using the heat exchanger sketched in Fig. 4.24. Steam, with a mass flux of 4 kg/s, enters as a saturated vapor at 20 kPa and leaves as a saturated liquid. If the cooling water is allowed to experience a temperature rise of 40ºC, its mass flux should be nearest:

A) 77 kg/s B) 151 kg/s C) 202 kg/s D) 236 kg/s

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Which of the following principles states that heat is created in one place and carried to another by means of air or water?

a. Heat-creation principle b. Heat-transfer principle c. Heat-movement principle d. Heat-transplant principle

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_________ is the process by which sex cells form

a. Osmosis c. Mitosis b. Meiosis d. Cytokinesis

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Find the volume in cubic inches of a pipe 10" in diameter and 120" long.

Fill in the blank(s) with the appropriate word(s).

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