The speed of a wave in the string is 16.2ms. The mass per unit length of the string is 0.3ms calculate tension in the string

The tension in the string is 78.73 N.

Explanation:

The tension in the string can be determined from the expression;

v =

where: v is the speed of the wave in the sting, T is the tension in the string and m is the mass per unit length of the sting.

Given that: v = 16.2 m/s, and m = 0.3 kg/m.

Then;

16.2 =

Square both sides to have,

=

T = x 0.3

  = 252.44 x 0.3

  = 78.732

T = 78.732 N

The tension in the string is 78.73 N.

the number of valence electrons for each molecule or ion is shown beneath the structure. remember hydrogen will not have more than two electrons. this hydrogen is part of a covalent bond (sharing two electrons). a double bond here would cause hydrogen to share four electrons with phosphorus.

answer; talc and gypsum;