A carpenter used a claw hammer to pull a 3cm nail out of a piece of wood. The nail had a resistance of 800N and the carpenter exerted a force of 40N. What was the mechanical advantage of the hammer ?

  the unit of the measure =

explanation:

  the property that is quantified by the energy needed per of material to raise the temperature by one.

  si unit of energy = joule (j)

  si unit of temperature = kelvin (k)

  si unit of mass of material = kilogram (kg)

the property that is quantified by the energy needed per of material to raise the temperature by one is called specific heat.

the unit of specific heat is

distance = 150m

displ = root (50 ^2 + 100^2)

root(2500+10000)

root 125000