Water flows through a cast steel pipe (k = 50 W m. K, ε = 0.8) with an outer diameter of 104mm and 2 mm wall thickness. Calculate the heat loss (convection and radiation) per meter length of uninsulated pipe when the water temperature is 90 oC, the outside air temperature is -10 oC, the water side heat transfer coefficient is 300 W m2.K and theoutside heat transfer coefficient is 20 W/m^2K.

The variables for this experiment include mass, volume and the materials in the various balls, as well as their densities. in part iii, you will be investigating the questionable baseball. use the drop-down menus to complete the sentences and identify the independent and dependent variables. in part iii, the independent variable, the one that is intentionally manipulated, is . in part iii, the dependent variable, the one that you measure the response in, is

When a bicycle coasts uphill, it moves slower and slower as it climbs. why? a. its kinetic energy is transforming into heat energy. b. its potential energy is transforming into kinetic energy. c. its kinetic energy is transforming into potential energy and heat energy. d. its potential energy is transforming into kinetic energy and heat energy.

In a heat engine if 1000 j of heat enters the system the piston does 500 j of work, what is the final internal energy of the system if the initial energy was 2000 j? 1. write the equation 2.list out your known variables 3.plug the numbers into the equations 4.solve 5.write your solution statement that includes initial energy and final