This preview shows pages 1–3. Sign up to view the full content.
This preview has intentionally blurred sections. Sign up to view the full version.
View Full Document
Unformatted text preview: EMCH 360 g(ycwj/ijw/ Spring 2012, HW ff 5 W“
Due on Thursday (March 1, 2012) Problem#1
The figure shows a rocket motor is operating steadily. The products of combustion
flowing out the exhaust nozzle approximate a perfect gas with a molecular weight of 28.
For the given conditions calculate V2 in ft/s. )6 t W M 1 Liquid oxygcn: W f i r M MM N w {it with“; WK t  ’9”?! :3 5 5: W 6 "W? um ,, . a in”
\ {www.«f/ ‘1 1:712:55 in, 5:2 3
w/ u“ M r 2 Q? a “M Problem#2 Ajet of water as shown in the figure strikes normal to a fixed plate. Neglect gravity and friction, and compute the force Fin Newtons required to hold the plate fixed. g 9
A! WM" MOM “(EDQ’U Kym: W» a,“ “I WV 3v RA
(/M % W" ﬂ: x: L
m mgéwli
.2“
«a w “I ‘v’lt\%/ A c??? I”; ‘l
g” M” \(jqé’ M39>l U > Problem#3
Water at 20°C flows through a 5cmdiameter pipe which has a vertical bend of 180°. The total length of pipe between flanges 1 and 2 is 75 cm. For a case when the weight
flow rate is 230 We, p1 = 165 kPa, and 192: 134 kPa. Neglecting pipe weight, determine
the total force which the flanges must withstand for this flow.‘ W 7” Ell w 7 ti “7% cﬁﬂw’l 52' V EQM it)! a) K / “7%” MW m TQM ...
View
Full
Document
This note was uploaded on 03/20/2012 for the course EMCH 360 taught by Professor Khan during the Spring '12 term at USC.
 Spring '12
 KHAN

Click to edit the document details