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MindTap Engineering for Dunlap's Sustainable Energy, SI Edition, 2nd Edition [Instant Access], 1 term (6 months)
2nd Edition
ISBN: 9781337551755
Author: DUNLAP
Publisher: Cengage Learning US
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Question
Chapter 3, Problem 15P
To determine
Find the volume of fuel needed to accelerate the ship from rest to cruising speed.
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A JET PLANE WHICH WEIGHT 29430 N AND HAS A
WING AREA OF 20 M² FLIES AT A VELOCITY OF 250
KM/HR. WHEN THE ENGINE DELIVERS 7357.5 KW, 65%
OF THE POWER IS USED TO OVERCOME THAT DRAG
RESISTANCE OF THE WING. CALCULATE THE CO-EFFICIENT
OF LIFT AND CO-EFFICIENT OF DRAG FOR THE WING.
TAKE DENSITY OF AIR EQUAL TO 1.21 KG/M³.
Question 4 of 10
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In a diesel engine the fuel is ignited when it is injected into hot compressed air, heated by the compression itself. In a typical high-speed
diesel engine, the chamber in the cylinder has a diameter of 10.7 cm and a length of 13.4 cm. On compression, the length of the
chamber is shortened by 12.7 cm (a “5-inch stroke"). The compression of the air changes its pressure from 1.00 to 39.5 atm. The
temperature of the air before compression is 391 K.
As a result of the compression, what will be the final air temperature (in Kand °C) just before the fuel injection?
temperature =
K = i
°C
eTextbook and Media
Hint
Assistance Used
Determine the volume change as a way to get a handle on the new temperature.
What equation relates pressure, temperature, and volume?
The volume of the cylinder = z r² (height).
Remember that the radius is half the diameter.
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A car having a mass of 1000 kg is
traveling at 100 kph. Calculate its kinetic
energy.
v = 100 kph
m = 1000 kg
Chapter 3 Solutions
MindTap Engineering for Dunlap's Sustainable Energy, SI Edition, 2nd Edition [Instant Access], 1 term (6 months)
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