Covert 60 mph to SI mks units
1 answer:
26.82m/s
Explanation:
Given:
speed = 60mph
problem: convert to m/s
To solve this problem, we have to find the right and appropriate conversion factor which equals to 1 to multiply this unit with:
we are converting:
miles to meters
hours to seconds
1.609km = 1mile
1000m = 1km
60s = 1 min
60 min = 1hr
Now to convert from mph to m/s
60 x x
= 26.82m/s
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Answer: The formula used to solve the problems related to first law of thermodynamics is
Explanation:
First law of thermodynamics states that the total energy of the system remains conserved. Energy can neither be destroyed, nor be created but it can only be transformed into one form to another.
Its implication is any change in the internal energy will be either due to heat energy or work energy.
Mathematically,
where, Q = heat energy
W = work energy
= Change in internal energy
Sign convention for these energies:
For Q: Heat absorbed will be positive and heat released will be negative.
For W: Work done by the system is negative and work done on the system is positive.
For : When negative, internal energy is decreasing and when positive, internal energy is increasing.
Hence, the formula used to solve the problems related to first law of thermodynamics is