Cylinder with frictionless piston contains steam at 2 mpa, 500c with a volume 5l, as shown in fig p5.64. external piston force is proportional to the cylinder diameter cubed. heat is transfered out of cylinder, reducing the volume and thus the force until the cylinder pressure has dropped to 500 kpa. find work and heat transfer in this process

Which situation will have the highest resistance? a.long wire and high temperatureb.short wire and high temperaturec.long wire and cold temperaturedshort wire and low temperature

30 points - when can a theory be modified if a new type of technology allows for new observations that raise new questions? a. immediately, while the questions about the theory are being asked b. after new hypotheses related to the theory are tested in experiments c. only after the new observations disprove all parts of the theory d. while scientists begin to think about how the theory could improve

An electron in an x-ray machine is accelerated through a potential difference of 1.00 × 104 v before it hits the target. what is the kinetic energy of the electron in electron volts?