An ideal heat engine operates in a cycle and produces work as a result of heat transfer from a thermal reservoir at an elevated temperature TH and by rejecting energy to a thermal sink at TL. The efficiency for such an ideal cycle, termed a ‘‘Carnot cycle,’’ is 1 /  = −T T L H Determine the required uncertainty in the measurement of temperature to yield an uncertainty in efficiency of 1% (i. e., u / 0.01    ). Assume that the uncertainties in measuring either temperature are the same (i. e., T T T L H u u u = = ) and uncorrelated. Use TH = 1000 K and TL = 300 K.

i think it's 35 meters

the minimum amperage that the current in this wire would have to have so that its weight is completely supported by the magnetic force due to earth's field, assuming that no other forces except gravity act on it

the order for strong to weak forces such as

strong nuclear force → electromegnetic force → weak nuclear force → gravitational force

the fundamental forces are those forces that act between to objects or element to make interactions. there are four types of fundamental forces such as strong and weak nuclear forces (due to protons and electrons), electromagnetic force (due to the motion of electrons) and gravitational force (due to orbital movement of the planet). if these forces are arranged on the basis of their maximum strength then the order is

strong nuclear force → electromegnetic force → weak nuclear force → gravitational force

= initial pressure

= final pressure = 2

= initial volume

= final volume = /4

= initial temperature = 20 c = 20 + 273 = 293 k

= final temperature = ?

using the equation