# Posts by Sanjna

Total # Posts: 7

**Geometry**

In parallelogram ABCD, P is mid-point of AB.CP and BD intersect each other at point O. If area of triangle POB = 40 cm^2, find : (i) OP :OC (ii) areas of triangle BOC and PBC (iii) areas of /\ ABC and parallelogram ABCD ? ?

*September 30, 2011*

**maths**

the perimetre of the rohmbus is 52cm and one of its diagnol is 10 cm find the length of the other diognol and the area of the rohmbus

*March 16, 2011*

**Physics**

A 0.20-kg ball on a string is whirled on a vertical circle at a constant speed. When the ball is at the three o'clock position, the string tension is 16 N. Find the tensions in the string when the ball is at twelve o'clock and at the six o'clock positions. * ...

*October 6, 2009*

**Physics**

thank you

*October 6, 2009*

**Physics**

Two satellites are in circular orbits around the earth. The orbit for satellite A is at a height of 360 km above the earth's surface, while that for satellite B is at a height of 720 km. Find the orbital speed for each satellite.

*October 6, 2009*

**Physics**

How can I find the v and the r for 3 o'clock.

*October 6, 2009*

**Physics**

A 0.20-kg ball on a string is whirled on a vertical circle at a constant speed. When the ball is at the three o'clock position, the string tension is 16 N. Find the tensions in the string when the ball is at twelve o'clock and at the six o'clock positions.

*October 6, 2009*

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