April 2016

Mechanics of Deformable Bodies: Shear and Moment Equations of Simple Beam with Uniform and Concentrated Loads

Submitted by Mechanics on April 3, 2016 - 11:10pm

integral calculus: Volume flow rate in hemispherical bowl

Submitted by RSpekter on April 4, 2016 - 5:08pm

sir pwede paki exaplain saan galing values nung "y"? thanks po :)

statics: matrix solution for tripod axial members

Submitted by RSpekter on April 5, 2016 - 5:39pm

how to apply matrix in this problem?

thanks :)

HELP please...

Submitted by RSpekter on April 9, 2016 - 9:33am

i think its very simple, but i can't seem to get it right..

I need help on this question about direct stress, strain and dimensional change in a component

Submitted by Jamie Frankum on April 10, 2016 - 2:36pm

The under carriage strut of an aircraft in development is to be manufactured from
tube and has an internal diameter (25mm) and external diameter (32mm). It is
connected to the wheel stub axle assembly using a clevis pin arrangement (See
figure 1). The strut and clevis pin are all manufactured from the same grade of
steel which has a Modulus of Elasticity (E) of 210GPa and a Shear Modulus (G) of 80Gpa

help: graph of x^(3/2) + y^(3/2) = 4^(3/2)

Submitted by Juny Geraldizo ... on April 16, 2016 - 8:49pm

can anyone help me how to graph this equation

x^(3/2) + y^(3/2) = 4^(3/2)

thanks for those who will response

Equation of the Locus of a Moving Point

Definition of a Locus
Locus is a Latin word which means "place". In mathematics, locus is the set of points that satisfies the same geometrical properties. In most cases, the relationship of these points is defined according to their position in rectangular coordinates.

Example 1
Determine the equation of the curve such that the sum of the distances of any point of the curve from two points whose coordinates are (-3, 0) and (3, 0) is always equal to 8.
A. 4x² + 49y² - 343 = 0
B. 7x² + 16y² - 112 = 0
C. 7x² - 16y² + 112 = 0
D. 4x² - 49y² + 343 = 0

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Trapezoidal gutter made from 24 m wide iron sheet

A gutter whose cross-section is trapezoidal is to be made of galvanized iron sheet of 24 m wide. If its carrying capacity is maximum, find the dimension of the base.
A. 4 m
B. 6 m
C. 8 m
D. 10 m

Support Reactions of a Trapezoidal Slab with Three Points of Support

Situation
A reinforced concrete slab in the shape of an isosceles trapezoid weighs 3600 N/m². It is supported on the three points as shown in the figure.

Find the reaction at A.
A. 16,848 N
B. 6,716 N
C. 13,372 N
D. 2,010 N
Find the reaction at B.
A. 16,848 N
B. 6,716 N
C. 13,372 N
D. 2,010 N
Find the reaction at C.
A. 16,848 N
B. 6,716 N
C. 13,372 N
D. 2,010 N

Reactions of Tripod Made from Wood Planks

Situation
In the figure shown, each plank carries a uniform load of 100 N/m throughout its length. The supports are on the same plane.

Find the reaction at A.
A. 900 N
B. 800 N
C. 1400 N
D. 2400 N
Find the reaction at B.
A. 900 N
B. 800 N
C. 1400 N
D. 2400 N
Find the reaction at C.
A. 900 N
B. 800 N
C. 1400 N
D. 2400 N

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Fifty Thousand Pesos Split into Two Simple Interest Investment

Problem
A man wants to invest a sum of P50,000 in two investments. The first investment earns a rate of interest 4 times that of the second investment. In 3 years the first investment grows to P37,200. For 10 years, the second investment grows to P24,000.

Find the sum invested in each rate of interest.
A. P35,000 and P15,000
B. P35,500 and P14,500
C. P30,000 and P20,000
D. P32,000 and P18,000
Find the rate of interest of each.
A. 8% and 2%
B. 6% and 4%
C. 7% and 3%
D. 5% and 1%

Engineering Mechanics: Alternative solution to Tripod made from three wood planks

Submitted by tyron on April 18, 2016 - 3:38pm

/reviewer/engineering-mechanics/reaction-planks-tripod-form another way how to solve reaction..

help: window consist of a rectangle with an equilateral triangle resting on its top

Submitted by Juny Geraldizo ... on April 19, 2016 - 4:52pm

pls help me to solve this problems as well as the solution:

1. a large window consist of a rectangle with an equilateral triangle resting on its top. if the perimeter P of the window is fixed at 33 ft, find the dimension of the triangle that will maximize the area of the window.

2. A student club on a college charges monthly membership dues of P10, less 5 centavos for each member over 60. How many members would give the club, the most revenue from the monthly dues?

analytic geometry: equation of lines through one point and at a distance from another point

Submitted by reyno ramos on April 20, 2016 - 10:44am

can you help me with this problem; find the equations of the lines through (7, -4) passing at a distance 1 from the point (2, 1)

solve pls: number of club members for maximum revenue

Submitted by Juny Geraldizo ... on April 28, 2016 - 2:32pm

A student club on a college charges monthly membership dues of P10, less 5 centavos for each member over 60. How many members would give the club, the most revenue from the monthly dues?