What is the gravitational potential energy associated whit the spoon at the height relative to the surface of the table. If a spoon is raised 21.0cm above a table and if the spoon and its contents have a mass of 30.0g.

0.062J

Explanation:

Given parameters:

Height of raising the spoon = 21cm

Mass of spoon  = 30g

Unknown:

Gravitational potential energy  = ?

Solution:

The gravitational potential energy of a body is the energy by virtue of the position of a such a body in space.

It is given as:

   G. P. E  = mgh

where m is the mass

          g is the acceleration due to gravity

          h is the height

Convert the parameters to appropriate units.

      21cm to m gives 0.21m

      30g to kg gives 0.03kg

   G.P.E  = 0.03 x 9.8 x 0.21  = 0.062J

chemical digestion occurs in the stomach were hcl and pepsin forms chyme, the mouth in which salivary amylase breaks down starch to form bolus, and the small intestine specifically the duodenum.