Answer:
Explanation:
Given
Lawn mover running for 
and does 
We know Power is rate of work i.e.
Thus Power output is
Answer:
Energy Ouput (Useful) / Total Energy Input = 4000 / 4800 = .833
E = 83% assuming 4800 is actually input to fan
Answer:
C) 2
Explanation:
The amount of centimeters is about 2.5 centimeters in an inch
Physics in everyday life
Physics, or the study of matter, energy, and the interactions between them, helps us to understand the laws and rules that govern the physical world. Not every student will grow up and study physics on a deeper level, but everyone uses basic physics concepts to navigate everyday life.
A hydraulic machine is a mechanical device that uses a hydraulic fluid to create mechanical work.
A hydraulic machine can be either:
1. Pump
2. Motor
The pump consumes an external torque and produces pressure and flow.
The motor consumes external pressure and flow and produces torque.
