May 2016

Help me for the solution of this problem:

What should be the maximum dimensions of a rectangular open box of a given volume V?

The top plane of the truncated octagonal right prism shown in the figure below is 45° with respect to horizontal. Find the volume.

The cyrstalline solid shown in the figure has two parallel planes; plane ABC is a right triangle and plane DEFG which is a rectangle. All face angles at B, D and E are 90°. Find the volume of the solid.

what is the equation of a circle touching the lines x-3y-11=0 and 3x-y-9=0 and having its center on the line 4x+y-27=0?

find the equation of the circle tangent to 3x+y+14=0 and x+3y+10=0 w/ radius square root of 10.
please someone Help me in this equations I really do need Badly some help.

Problem 1005
A timber beam 6 in. by 10 in. is reinforced only at the bottom by a steel plate as shown in Fig. P-1005. Determine the concentrated load that can be applied at the center of a simply supported span 18 ft long if n = 20, fs ≤ 18 ksi and fw ≤ 1200 psi. Show that the neutral axis is 7.1 in. below the top and that INA = 1160 in.4.

I've been trying to solve the following question for 2 days now and i can't seem to be able to. can someone help me please ?

For the beam shown in Figure 3, the support at A is fully fixed. The beam is tapered however you may consider it to be a beam of 3 varying sections.

Take:
Beam A to B as having 3 times the I value of beam D to end, Beam B to D as having 1.5 times the I value of beam D to end and Beam D to end is 310 UB 46.2 with I = 100 x 106 mm4. Tip: this may be easier to solve using superposition.

What are the most used and best books on these subjects?
1. Surveying
2. Differential Equations
3. Statics
4. Engineering Electronics and Electricity
5. Engineering Economy

Name of the book plus author. Please kailangan ko po now ngayong summer.

Geometrical Application

Find the eq. of the curve such that the x-intercept of the tangent line at any pt. (x, y) on it divided by the square of the ordinate is a constant.

Please help me answer

∫dx/cos(x)sin(x)