Question
Whenadetergentisaddedtopure water, its surface tension
–Solution
When Soaps and detergents are added to water, they weaken the strength of the skinonthewater'ssurfaceduetosurfacetension by interfering with hydrogen bonding between water molecules. It happens because the polar end of the soap or detergent is also attracted to the water, thereby decreasing the surface tension.
I. 3p2Â - 11p + 10 = 0
II. 42q2Â + q -1 = 0
I). p2 + 22p + 72 = 0,
II). q2 - 24q + 128 = 0
Find the roots of the equation 6p² – 5p – 6 = 0.
I. y² + y – 56 = 0
II. 2x² + 11 x – 40 = 0
 If x satisfies x² – 14x + 40 = 0, find x.
I. 2y² - 35y + 132 = 0
II. 2x² - 31x + 110 = 0
I. 35x² - 46x – 16 = 0
II. 35y² - 116y + 96 = 0
I. 20x² - 93x + 108 = 0
II.72y² - 47y - 144 = 0
I. x3 = 1728
II. y2 – 15y + 56 = 0
I. x2 + x – 42 = 0
II. y2 + 6y – 27 = 0
