Emperature becomes to 950K just before it hits stops. The volume of the cylinder at the stops is 1.5m'. Heating continues while the piston's movement is constrained by the stops until the temperature reaches 1300K. Find the pressure when the temperature reaches 950K at the stops and the final pressure when the temperature reaches 1300K. Also, find the work done and the total heat transfer during the entire heating process. Compute the entropy generation in the whole process. Consider air to behave like an ideal gas with constant specific heats and use a value of 1.004 kJ/(kg K) for Cp and 0.717 kJ/(kg K) for C. For easy reference, call the initial state 1, the state corresponding to just before hitting the stops 2, and the final

Part f - example: finding two forces (part i) two dimensional dynamics often involves solving for two unknown quantities in two separate equations describing the total force. the block in (figure 1) has a mass m=10kg and is being pulled by a force f on a table with coefficient of static friction îľs=0.3. four forces act on it: the applied force f (directed î¸=30â above the horizontal). the force of gravity fg=mg (directly down, where g=9.8m/s2). the normal force n (directly up). the force of static friction fs (directly left, opposing any potential motion). if we want to find the size of the force necessary to just barely overcome static friction (in which case fs=îľsn), we use the condition that the sum of the forces in both directions must be 0. using some basic trigonometry, we can write this condition out for the forces in both the horizontal and vertical directions, respectively, as: fcosî¸â’îľsn=0 fsinî¸+nâ’mg=0 in order to find the magnitude of force f, we have to solve a system of two equations with both f and the normal force n unknown. use the methods we have learned to find an expression for f in terms of m, g, î¸, and îľs (no n).

If vx = 7.00 units and vy = -7.60 units, determine the magnitude of v⃗ . determine the direction of v⃗ .

Chameleons catch insects with their tongues, which they can rapidly extend to great lengths. in a typical strike, the chameleon's tongue accelerates at a remarkable 220 m/s2 for 20 ms, then travels at constant speed for another 30 ms.