Afour-cylinder gasoline engine has an efficiency of 28 % and delivers 280 j of work per cycle per cylinder. a) if the engine runs at 25 cycles per second (1500 rpm), determine the work done per second. b)what is the total heat input per second from the gasoline. c) if the energy content of gasoline is 130 mj per gallon, how long does one gallon last?

You and a friend (alex) are at a a tree-top adventure park .. . part of the course requires you to climb up a rope. you both climb the same rope in the same amount of time. however, the tension in the rope is greater when alex climbs. who did the most work? alex did - more tension means more force - more force means more work was done you did - less tension means less force - less force means more work was done to find the work done, the force exerted and distance moved are multiplied. a couch is moved twice before you are happy with its placement. the same force was used to move the couch both times. if more work is done the first time it is moved, what do you know about the distance it was moved? when more work was done, the couch was moved less. when more work was done, the couch was moved further. when more work was done, the couch wasn't moved at all. when more work was done, the couch was moved the same distance.

Which lists the organs in the correct order as food passes from the mouth to anus?

What is the temperature in degrees celsius of a substance with a tempature of 49k