The average Benchmark Human Services monthly salary ranges from approximately $1,500 per month for Licensed Practical Nurse to $1,500 per month for Licensed Practical Nurse.Salary information comes from 67 data points collected directly from employees, users, and jobs on Indeed.he average Benchmark Human Services monthly salary ranges from approximately $1,500 per month for Licensed Practical Nurse to $1,500 per month for Licensed Practical Nurse.
In a vacuum, all electromagnetic waves travel at approximately 3 x 108 m/s - the fastest speed possible. When electromagnetic waves travel through matter (for example, light through air or glass), they travel a bit slower than this but rarely less than half as fast as in a vacuum. The value for light travelling through an optical fibre, for example, is taken as 2 x 108 m/s.
1 They transmit radio waves through space to antennas here on the ground.).  Sound travels at approximately 1,100 feet per second (766 miles per hour). Radio waves travel at the speed of light, which is approximately 186,000 miles per second. This means that in the time radio waves travel the length of a football field, light can travel further than all the way around the world.