How does the shovel make work easier for the man digging the hole? check all that apply. the shovel changes the direction of the force the man applies. the man can apply less force. the man has to apply more force. the force applied by the end of the shovel decreases. the force applied by the end of the shovel increases.

1)The shovel changes the direction of the force the man applies.2)The man can apply less force.3)The force applied by the end of the shovel increases.

Explanation:

The shovel is a tool which is used for digging or moving the bulk material. It makes the work easier for the man digging the hole. The machines changes the way force is applied. In this way, the man has to apply less force to lift the bulk material.

But at the end of the shovel, the applied force increases.

The following are the correct options as;

It changes the direction of the force the man applies. The man can apply less force. The force applied by the end of the shovel increases.

explanation:

a fuel engine ( known as a gasoline engine in american english )is an internal combustion engine with spark ignition, designed to run on petrol (gasoline) and similar volatile fuels.

  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