Answer:
work output is always less than work input - the ratio is less than 1.
Step-by-step explanation:
This principle comes from the fact that a machine or system cannot produce more work than is supplied to it, because this would violate the energy conservation law (work is a type of mechanical energy).
In theoretical machines called "ideal machines" the input work is the same as the output work, but these machines are only theoretical because in real applications there is always some type of energy loss, either in heat produced by a machine or processes for its operation, for this reason the output work is always less than the input work.
Regarding the ratio work output to work input:
WO/WI<1
because work input WI is always greater than work output WO.
Answer: She will need the minimum of 12 months
7000-2500= 4500
4500/2=11.25
11.25 rounded up is 12
Answer:
62
Step-by-step explanation:
this is an isosceles triangle
that means the 6cm = the other 6cm on the other side
the base angles are therefore equal
so base = z=z
base is 2z
angles in a triangle add up to 180 degrees
so 180=56+2z
180-56
2z=124
divide by 2 to get 62
