Oil as you might notice is used in moving parts in machines.
The reason being is that oil is a smooth type of liquid.
So when machine parts are moving with oil on them, the oil allows the machine parts to move more smoothly. So when there is a squeaky noise on a moving part on a machine, mechanics/workers often put oil to make it more smooth because the moving parts are rubbing off on each other.
Answer:
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Explanation:
Answer:
I HOPE THIS IS CORRECT
Explanation:
Power of water =2 kw=2000w
Mass of water =200kg
difference in temperature ΔT=70−10=60oC
Concept
energy required to heat the water = energy given by water in time t=pt
energy required to increase tempeature of water by 60oC,Q=msΔT
S= specific heat =4200J/kgoC
pt=msΔT
2000×t=200×4200×60
t=25200
or t=25.2×103sec.
One reason that it would be appropriate to talk on your cell phone, could be reporting an accident. For instance, a car crash, a sign in the road anything regarding safety of drivers.
Answer:Food contains chemical potential energy. As our bodies digest it, the stored energy is converted into energy for us to move and grow.
Explanation: