A130 mm diameter cylinder fitted with a frictionless piston contains 0,03 kg of water at a pressure of 0.6 mpa and a temperature of 190°c. as the piston outwards through a distance constant, where p is in mpa and v is in m' and n is the polytropic exponent. the final pressure of the steam is 0.1 mpa. state all assumptions. find of 200 m m the water undergoes a polytropic process: pv"- (i) the value of the polytropic exponent, n (ii) the change in internal energy of water in k (ii) the change in enthalpy of water in kj (iv) the magnitude and sign of work transfer in the process in kj. (v) the magnitude and sign of heat transfer in the process in kj. (vi) show the process approximately in a p-v and a t-v diagram (vii) if the surroundings are at 200 'c does this process violate the 2ad law?

American eels (anguilla rostrata) are freshwater fish with long, slender bodies that we can treat as uniform cylinders 1.0 m long and 10 cm in diameter. an eel compensates for its small jaw and teeth by holding onto prey with its mouth and then rapidly spinning its body around its long axis to tear off a piece of flesh. eels have been recorded to spin at up to 14 revolutions per second when feeding in this way. although this feeding method is costly in terms of energy, it allows the eel to feed on larger prey than it otherwise could. 1.a field researcher uses the slow-motion feature on her phones camera to shoot a video of an eel spinning at its maximum rate. the camera records at 120 frames per second. through what angle does the eel rotate from one frame to the next? 2. the eel is observed to spin at 14 spins per second clockwise, and 10 seconds later it is observed to spin at 8 spins per second counterclockwise. what is the magnitude of the eels average angular acceleration during this time? 3. the eel has a certain amount of rotational kinetic energy when spinning at 14 spins per second. if it swam in a straight line instead, about how fast would the eel have to swim to have the same amount of kinetic energy as when it is spinning? 4.a new species of eel is found to have the same mass but one-quarter the length and twice the diameter of the american eel. how does its moment of inertia for spinning around its long axis compare to that of the american eel?

A( developed during the process of technology design

Two models of the same compound are shown. in what way is model b better than model a? model b shows the types of elements in the compound, but model a does not. model b shows the three-dimensional shape of the molecule, but model a does not. model b shows how the atoms in the molecule are connected, but model a does not. model b shows the number of atoms of each element in the molecule, but model a does not