Homework Answers
Add Answer to:
6. A flat plate is made of steel with mass density p= 7850 kg/m3. The thickness of the plate is 10 mm. Calculate the re...
9. A truss and a steel cable are supporting a mass of m = 20 kg...
9. A truss and a steel cable are supporting a mass of m = 20 kg as shown. A cable is supported by a frictionless pulley at point B for L = 500 m, d = 200 m, and h = 300 m. (a) (2 marks) Draw a free-body diagram and show all forces that act on this structure (b) (1 mark) Find the magnitude of the tension force in the steel cable, (c) (3 marks) Find the x and...
A P=2-kN tensile load is applied to a test coupon made from 1.6-mm thick flat steel...
A P=2-kN tensile load is applied to a test coupon made from
1.6-mm thick flat steel plate (E = 220 GPa, v =
0.30). Assuming a=45 mm and b=13 mm,
(a) Determine the resulting change in the 45-mm gage length.
(b) Determine the resulting change in the 13-mm width.
(c) Determine the resulting change in the 1.6-mm thickness.
(d) Determine the resulting change in the cross-sectional
area.
The uniaxial state of stress in given as ________ (MPa)
A P-2-kN tensile...
A steel (density 7.86 x 103 kg/m3) wire of length 1.20 m and diameter 0.644 mm...
A steel (density 7.86 x 103 kg/m3) wire of length 1.20 m and diameter 0.644 mm is subjected to a tension of 34.5 N. At one end of the wire is an oscillator harmonically oscillating one end of the wire at a frequency of 60 Hz, the other end of the wire runs over a pulley to a hanging mass that supplies the tension.What is the wavelength of the waves produced by the oscillator?
X Incorrect. The boundary-layer thickness, 5, on a smooth flat plate in an incompressible flow without...
X Incorrect. The boundary-layer thickness, 5, on a smooth flat plate in an incompressible flow without pressure gradients depends on the freestream speed, U, the fluid density, p, the fluid viscosity, u, and the distance from the leading edge of the plate, x. (a) Express these variables in dimensionless form and (b) calculate dimensionless parameter (proportional to x) with x 0.150 m, p 385 kg/m3, U 0.147 m/s, u 0.2 x 104 N-s/m2. Click here to enter or edit your...
Consider air flows with velocity of U?=U= 10 m/s over a semi-finite smooth flat plate with...
Consider air flows with velocity of U?=U= 10 m/s over a
semi-finite smooth flat plate with L=97 cm long. Calculate the
followings by assuming ? = 1.568 x 10-5 m2/s and ?=1.177
kg/m3.
Figure 1 : Boundary layer over a flat plate
Consider air flows with velocity of U?=U=10 m/s over a
semi-finite smooth flat plate with L=97 cm long. Calculate the
followings by assuming ? = 1.568 x 10-5 m2/s and ?=1.177
kg/m3.
b) Under some flow and boundary...
4- A steel strip of thickness 6-12 mm is annealed by passing it through a large fumace whose wall...
4- A steel strip of thickness 6-12 mm is annealed by passing it through a large fumace whose walls are maintained at a temperature Tw corresponding to that of combustion gases flowing through the fumace (Iw Tp). The stip, whose density, spcific thermal conductivity, and emissivity are 79 kg/m3, cp -640 J/kg K, k 30 W/m K and 0.7, respectively, is to be heated from 300°C to 600°C Furnace walls, Combustion gases For a unifom convection coefficient of h-100 W/m2...
Question 6: Moment of inertia of an algebraic shape A plate of uniform areal density p=...
Question 6: Moment of inertia of an algebraic shape A plate of uniform areal density p= 4 kg/m2 is bounded by the four curves: y= -x2 – 2x – 4 m y=-23c2 + 4x + 19 m x = -2 m x = -1 m, where x and y are in meters. Point P has coordinates Pc = -1 m and Py = –3 m. What is the moment of inertia Ip of the plate about point P? Ip =...
The high E-string of a steel string guitar is about L = 0.7m long. It has a mass per unit length of p = 5.3 *10^-4 kg/m....
The high E-string of a steel string guitar is about L = 0.7m
long. It has a mass per unit length of p = 5.3 *10^-4 kg/m. Find
the tension T required to properly tune the string, given that a
high E has a frequency of f = 1318.51 hertz
(a) The high E-string of a steel string guitar is about L 0.7 m long. It has a mass per unit length of ρ= 5.3 x 10-4 kg/m. Find the...
2. (1O pts) A flat bar of an annealed metal, whose strain-hardening behavior is expressed by σ 800 (10) es N m2, originally 25 mm in thickness. By a series of tw o consecutive reductions the initial...
2. (1O pts) A flat bar of an annealed metal, whose strain-hardening behavior is expressed by σ 800 (10) es N m2, originally 25 mm in thickness. By a series of tw o consecutive reductions the initial thickness is reduced to 20 and 15 mm respectively under plane strain condition (the width of the bar , wis not changed). What is the new yield strength of the material? What is the temperature rise in this adiabatic deformation process? The pertinent...
Problem 1 An incompressible, viscous fluid with density, p, flows past a solid flat plate which...
Problem 1 An incompressible, viscous fluid with density, p, flows past a solid flat plate which has a width, b, into the page. The flow initially has a uniform velocity U before contacting the plate. The velocity profile at location x is estimated to have a parabolic shape, u-u[(Y)-(,)21"for ysiand u-vfor y 20 where isthe boundary layer thickness. (a) Determine the upstream height from the plate, h, of a streamline which has a height, 6, at the downstream location, x....
9. A truss and a steel cable are supporting a mass of m = 20 kg as shown. A cable is supported by a frictionless pulley at point B for L = 500 m, d = 200 m, and h = 300 m. (a) (2 marks) Draw a free-body diagram and show all forces that act on this structure (b) (1 mark) Find the magnitude of the tension force in the steel cable, (c) (3 marks) Find the x and...
A P=2-kN tensile load is applied to a test coupon made from
1.6-mm thick flat steel plate (E = 220 GPa, v =
0.30). Assuming a=45 mm and b=13 mm,
(a) Determine the resulting change in the 45-mm gage length.
(b) Determine the resulting change in the 13-mm width.
(c) Determine the resulting change in the 1.6-mm thickness.
(d) Determine the resulting change in the cross-sectional
area.
The uniaxial state of stress in given as ________ (MPa)
A P-2-kN tensile...
X Incorrect. The boundary-layer thickness, 5, on a smooth flat plate in an incompressible flow without pressure gradients depends on the freestream speed, U, the fluid density, p, the fluid viscosity, u, and the distance from the leading edge of the plate, x. (a) Express these variables in dimensionless form and (b) calculate dimensionless parameter (proportional to x) with x 0.150 m, p 385 kg/m3, U 0.147 m/s, u 0.2 x 104 N-s/m2. Click here to enter or edit your...
4- A steel strip of thickness 6-12 mm is annealed by passing it through a large fumace whose walls are maintained at a temperature Tw corresponding to that of combustion gases flowing through the fumace (Iw Tp). The stip, whose density, spcific thermal conductivity, and emissivity are 79 kg/m3, cp -640 J/kg K, k 30 W/m K and 0.7, respectively, is to be heated from 300°C to 600°C Furnace walls, Combustion gases For a unifom convection coefficient of h-100 W/m2...
Question 6: Moment of inertia of an algebraic shape A plate of uniform areal density p= 4 kg/m2 is bounded by the four curves: y= -x2 – 2x – 4 m y=-23c2 + 4x + 19 m x = -2 m x = -1 m, where x and y are in meters. Point P has coordinates Pc = -1 m and Py = –3 m. What is the moment of inertia Ip of the plate about point P? Ip =...
The high E-string of a steel string guitar is about L = 0.7m
long. It has a mass per unit length of p = 5.3 *10^-4 kg/m. Find
the tension T required to properly tune the string, given that a
high E has a frequency of f = 1318.51 hertz
(a) The high E-string of a steel string guitar is about L 0.7 m long. It has a mass per unit length of ρ= 5.3 x 10-4 kg/m. Find the...
2. (1O pts) A flat bar of an annealed metal, whose strain-hardening behavior is expressed by σ 800 (10) es N m2, originally 25 mm in thickness. By a series of tw o consecutive reductions the initial thickness is reduced to 20 and 15 mm respectively under plane strain condition (the width of the bar , wis not changed). What is the new yield strength of the material? What is the temperature rise in this adiabatic deformation process? The pertinent...
Problem 1 An incompressible, viscous fluid with density, p, flows past a solid flat plate which has a width, b, into the page. The flow initially has a uniform velocity U before contacting the plate. The velocity profile at location x is estimated to have a parabolic shape, u-u[(Y)-(,)21"for ysiand u-vfor y 20 where isthe boundary layer thickness. (a) Determine the upstream height from the plate, h, of a streamline which has a height, 6, at the downstream location, x....
Most questions answered within 3 hours.
-
Chargaff's results yielded a molar ratio of 0.400 for A to G in
avian tubercle bacillus...
asked 2 hours ago -
Which of the following binds ATP/ADP?
a. microfilaments
b. microtubules
c. intermediate filaments
d. microfilaments and...
asked 2 hours ago -
Assume that the situation can be expressed as a linear cost
function. Find the cost function....
asked 3 hours ago -
(Sort ArrayList) Write the following method that sorts an
ArrayList: public static > void sort(ArrayList list)...
asked 4 hours ago -
2) A 9 volt battery is connected to a parallel plate capacitor
with an initial capacitance...
asked 3 hours ago -
Prince Equipment has to decide whether to obtain $1,000,000 of
financing by: (1) selling common stock...
asked 4 hours ago -
The terms electrical and electronic have similar but
different meanings which of the following statement is...
asked 4 hours ago -
You wish to test the claim that the mean GPA of night students
is than 2.5...
asked 5 hours ago -
A soft drink machine outputs a mean of 25 ounces per cup. The
machine's output is...
asked 6 hours ago -
Ross Co., Westerfield, Inc., and Jordan Company announced a new
agreement to market their respective products...
asked 6 hours ago -
What is the distance run by a runner 50m/hr and
60m/hr?
asked 7 hours ago -
Write a descendant selector rule that affects the <em>
element that is contained within the
<p>...
asked 7 hours ago