All theory of engineering are available in our blog

Basic Definitions Mass It is quantity of matter contained in a body. It does not depend upon gravitational force. The  fundamental unit of mass is the Kilogram (kg). Weight Weight is the force exerted by gravity. Weight of body is dependent upon gravitational force, so it is  not constant. Weight = Mass x Gravitational acceleration W =m g Force It is push or pull acting on a body which changes or tends to change the state of rest or uniform motion of the body. As per Newton's second law of motion Force ∝ acceleration F= m a  In SI unit (International system), unit of mass is kg and unit of acceleration is m/s2 and unit of the force is Newton (N). When m = 1 kg, and a = 1 m/s then F = 1 N. 1 N: When unit mass is given unit acceleration then the force produced is 1 N. Pressure It is the force exerted by fluid (liquid or gas) on unit area. It is a property of fluid.  Pressure=Force/Area=N/m² The unit of pressure is known as Pascal (Pa) or N/m2 1 Pa = 1 N/m2 Other commonly used units

  You can reduce the charging time of the phone by 20%  It doesn't have its fast charging battery.  It often supports fast charging of the phone, but it does not charge fast.  You can eliminate this charging problem by changing one of the phone's settings.  Changing this setting will reduce the charging time by 20%.  The phone has a secret setting  The setting associated with fast charging is a secret in the phone.  This setting is in the developer option of the phone.  To apply this setting, first go to the phone's Settings and go to 'About phone'.  At the bottom, tab the Build number 7-8 times.  Then comes Developer options.  This option has several secret settings related to the phone.  Follow these steps  When Cone's Developer options come up, open it.  It will be found at the bottom of the phone's Settings at the top of the About phone.  Turn it ON from the top right.  Now in the Developer options, open the Select USB configuration option in the Network