Wednesday

July 30, 2014

July 30, 2014

Total # Posts: 14

**physic**

The bar in the figure has constant cross sectional area A . The top half of the bar is made of material 1 with mass density ro1 , and Young’s modulus E1 . The bottom half of the bar is made of material 2 with density ro2 and Young’s modulus E2=2E1 . The total lengt...

**physic**

The composite bar BCD in the figure is composed of an inner aluminum cylindrical core of length 2l=2m and radius R=1cm and a sleeve of steel of length L=1m and thickness R=1cm surrounding the aluminum core in the CD section of the bar. The Young’s moduli are:Eal= 70Gpa =...

**Physic**

Reaction at support and internal axial force resultant Consider two straight bars of uniform cross section made of the same material. Bar 1 has an axial length 1m of and a square cross section 1mm with side length . Bar 2 has an axial length of 3 m and a round cross section wi...

**psuchics**

Reaction at support and internal axial force resultant Consider two straight bars of uniform cross section made of the same material. Bar 1 has an axial length 1m of and a square cross section 1mm with side length . Bar 2 has an axial length of 3 m and a round cross section wi...

**physics**

Consider two straight bars of uniform cross section made of the same material. Bar 1 has an axial length of and a square cross section with side length . Bar 2 has an axial length of and a round cross section with diameter. When subjected to axial tension, bar 1 elongates by ....

**chemistry**

1.15*10^15

**physics**

and T=50 N is not for pullyey ? tension for rope

**physics**

physics - asa, Tuesday, September 18, 2012 at 1:25pm can yu help me thanks in advanec. imageshack . us /photo/ my-images//593/questionpb.png/

**PHYICAL**

A small closed bottle is filled with water to adepth of 30 cm .A small hole located 10 cm above the bottom of the bottle is then opened .What is the speed of the water emerge from the hole in m\sec unit

**PHYICAL**

If average current of 5.5 Amp is passing through a condutor for 2 min ,What is the charge in Coulomb ( C ) crossed any cross sectional area.

**PHYICAL**

What is the pressure due to 30 m height water column.

**Physics**

asa

**physics**

Small rockets are used to make tiny adjustments in the speeds of satellites. One such rocket has a thrust of 35 N. If it is fired to change the velocity of a 71500 kg spacecraft by 63 cm/s, how long should it be fired?

**physics**

What happens to a path of a light ray parallel to the principal axis, after it passes through a converging lens?

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