May 2015

Himanshu Dhadwal's picture

Problem of finite element analysis(urgent)

Submitted by Himanshu Dhadwal on May 2, 2015 - 2:21pm

Consider the truss system shown in Fig. 2 modelled by three elements. The element numbers are shown in brackets. The node numbers are as indicated in the figure. Suppose that all the trusses have a cross sectional area of A = 0.1 m2 and Young’s modulus E = 70 GPa. Determine the displacements at all the nodes if the force P = 2000 N. The length L = 2 m.truss.jpg

Problem 863 | Deflection by Three-Moment Equation

Problem 863
For the beam shown in Fig. P-863, determine the value of EIδ midway between the supports and at the left end.
 

863-verhang-beam-given.gif

 

Answer

At midway between the supports
$\delta = \dfrac{1066.67}{EI} ~ \text{ upward}$
 

At the left end
$\delta = \dfrac{16,000}{EI} ~ \text{ downward}$

 

For the complete solution using the three moment equation, see it here: http://www.mathalino.com/reviewer/strength-materials/problem-863-deflect...
 

Vaness Tejada's picture

equilateral triangle revolved about one of its sides

Submitted by Vaness Tejada on May 8, 2015 - 7:23am

find the area and volume of the figure developed by an equilateral triangle with sides s if it is revolved about one of its sides.

Problem 864 | Deflection by Three-Moment Equation

Problem 864
An 18-ft beam, simply supported at 4 ft from each end, carries a uniformly distributed load of 200 lb/ft over its entire length. Compute the value of EIδ at the middle and at the ends.
 

864-overhanging-simple-bem.gif

 

MichMaganda's picture

Cubes

Submitted by MichMaganda on May 9, 2015 - 12:54pm

The area of the diagonal section of a cube i equal to 36squareroot of 2. Determine the measures of the edge and the diagonal of the cube.

MichMaganda's picture

Parallelepiped

Submitted by MichMaganda on May 9, 2015 - 1:01pm

A plane is passed through a parallelepiped, cutting all the lateral edges and forming a right section which is square. If the lateral area of the solid is 216cm^2 and a lateral edge measures 9cm, find the measure of one side of the right section.

MichMaganda's picture

Density of compressed oxygen gas in the cylinder

Submitted by MichMaganda on May 9, 2015 - 2:51pm

A cylindrical gas bottle has internal dimensions of 18cm in diameter and 49cm in height. It is designed to contain compressed oxygen gas. The bottle has a mass of 1.75kg when empty and 3.15kg when full of oxygen gas. What is the density of the oxygen gas in a full bottle in kg/m^3?

MichMaganda's picture

Lead needed to coat a cable

Submitted by MichMaganda on May 9, 2015 - 3:22pm

How much lead is needed to coat a cable, 55mm in diameter, if the cable is 5km long and the lead coat is 4mm thick. 11.4x10^3 kg/m^3 for the density of the lead.

MichMaganda's picture

Water supply

Submitted by MichMaganda on May 10, 2015 - 8:22am

A chemical plant requires a water supply of 12m^3/hr. Suppose the rate of flow in the water pipe is 2m/sec. Find the radius of the pipe to be used in centimeters.

MichMaganda's picture

Cylindrical hole bore into a cube

Submitted by MichMaganda on May 10, 2015 - 8:26am

A 3-inch diameter hole is drilled 6 inches deep into the center and normal to the top face of a brass cube 8 inches on a side. The hole is filled with lead. If the brass weighs 525lb/ft^3 and the lead weighs 705lb/ft^3 Find the total mass of two metals.

PS: I can't imagine the drawing.

MichMaganda's picture

Rectangular

Submitted by MichMaganda on May 10, 2015 - 8:59am

A rectangular container, with a height of 24 in., contains 44.9 gal of water when it is full. A stick is placed diagonally from one corner of the upper base as shown. If BC = 10in., AC= 25in. and webcam-toy-photo1.jpg is a point indicating the water level, find the height and volume of the liquid in the container.

Edrel Lynn Coldz Cadungog's picture

physics

Submitted by Edrel Lynn Cold... on May 10, 2015 - 12:35pm

a soccer ball with mass 0.420 kg is initially moving with speed 2.00 m/s. a soccer player kicks the ball, exerting a constant force of magnitude 40.0 N in the same direction as the ball's motion. over what distance must the player's foot be in contact with the ball to increase the ball's speed to 6.00 m/s?

Edrel Lynn Coldz Cadungog's picture

physics

Submitted by Edrel Lynn Cold... on May 10, 2015 - 1:14pm

a force of a baseball swing. a baseball ha mass 0.145 kg

a. if the velocity of a pitched ball has a magnitude of 45.0 m/s and the batted ball's velocity is 55 m/s in the opposite direction, find the magnitude of the change in momentum of the ball and of the impulse applied to it by the bait.

b. if the ball remains in contact with the bat for 2 m/s, find the magnitude of the average force applied by bat.

Tungsten's picture

Analytic Geometry Problem Set [Locked: Multiple Questions]

Submitted by Tungsten on May 21, 2015 - 2:25pm

Analytic Geometry Problem Set

I really need help in solving this problem I don't how to do some of it. Please.

Problem 1:
A line passes through point (2,2). Find the equation of the line if the length of the line segment intercepted by the coordinate axes is the square root of 5.

Problem 2:
What is the equation of the line bisecting the bigger angle formed by the intersection of the lines 2x-y+2=0 and 2x+y-4=0?

Problem 3:
The points P(-3, 6), Q(1,-5), R(7, 2) are vertices of a triangle. Find the interior angles.

Dyjin's picture

Discussion on: Advance Engineering Mathematics

Submitted by Dyjin on May 27, 2015 - 8:05pm

Following is a discussion on the Reviewer item titled: Advance Engineering Mathematics.
Feel free to add your own comments!

Dyjin's picture

Maclaurins Series

Submitted by Dyjin on May 27, 2015 - 8:10pm

Help please..

Finding the Maclaurins of:

ln tanx

Mohammed Ahmed's picture

Discussion on: Problem 512 | Friction

Submitted by Mohammed Ahmed on May 27, 2015 - 11:52pm

Following is a discussion on the Reviewer item titled: Problem 512 | Friction.
Feel free to add your own comments!

Discussion on: 1012 Train at constant deceleration | Rectilinear Translation

Submitted by manikandan on May 28, 2015 - 1:34pm

Following is a discussion on the Reviewer item titled: 1012 Train at constant deceleration | Rectilinear Translation.
Feel free to add your own comments!