Because: Some of the work done by the machine is used to overcome the friction created by the use of the machine. ... Work output can never be greater than work input. Machines allow force to be applied over a greater distance, which means that less force will be needed for the same amount of work.
Answer:
0.22 km/h
Explanation:
72 hours in 3 days
16/72 = 0.222222222
round to 0.22 km/h
For future reference, Distance/Time= Speed
Answer:

Explanation:
Let solve the differential equation by separating corresponding variables:

The solution of this equation is:

The explicit form of the temperature as a function of time is:


The value of the integration constant is:

The complete expression is:
