Agust of wind blows an apple from a tree. as the apple falls, the gravita- tional force on the apple is 2.25 n downward, and the force of the wind on the apple is 1.05 n to the right.
find the magnitude and direction of the net force on the apple.

The magnitude of the net force is 2.48294 N and the angle is 25.02° with respect to the vertical

Explanation:

Consider the gravitational force as

Consider the wind force as

The angle between the gravitational force and wind force is 90°

From the parallelogram law we have

The angle between the resultant and the gravitational force would be

The magnitude of the net force is 2.48294 N and the angle is 25.02° with respect to the vertical

  1.the balanced   chemical equation is as below

cu +   2 ag(no)₃ → cu(no₃)₂   +2 ag

2.the   much silver   produced   is   50.9 g

step 1: find the   moles of cu

moles =   mass÷   molar mass

  from periodic table the molar mass of cu = 63.5 g/mol

moles is therefore = 15.00 g÷ 63.5 g/mol = 0.236   moles

step 2: use the mole ratio to determine the   moles of ag

from equation above   cu: ag   is 1: 2

therefore the moles of ag   =0.236   moles   x 2/1 =0.472   moles

step 3: find the mass   of ag

mass = moles x molar mass

from periodic table   the molar mass of ag =107.87 g/mol

mass   = 0.472   moles x 107.87 g/mol = 50.9 g

3.   the   much   silver   collected worth is   1.797 oz

  convert   50.9 g   to oz

that is   1 gram = 0.0353 oz

          50.9 grams =?   oz

by cross multiplication

={(50.9 grams x 0.0353 oz) / 1   gram}   =1.797 oz

54 degrees incident angle = reflected angle

angle is from normal turned to line of ray