Questions

A sales commission is money your small business pays an employee when she sells your products or services to customers. Sales commissions are classified as selling expenses which come under Period costs. A period cost is any cost that cannot be capitalized into prepaid expenses, inventory, or fixed assets.

Breaking of relationships is prevented once referential integrity on a database is enforced

Light amplification by stimulated emission of radiation.

Given two trains of length = 180 mts + 180 mts 

The distance is = Length of trains = 360 mts 

Speed = 58 - 50 = 8 kmph x 5/18 m/s

Then, Time = dis/speed = (360x18) / (8x5) = 162 sec.