Steam at 320°c flows in a stainless steel pipe (k =15 w/m ·°c) whose inner and outer diameters
are 5 cm and 5.5 cm, respectively. the pipe is covered with 3-cm-thick glass wool insulation
(k = 0.038 w/m ·°c). heat is lost to the surroundings at 5°c by natural convection and radiation,
with a combined natural convection and radiation heat transfer coefficient of 15 w/m2
·°c. taking
the heat transfer coefficient inside the pipe to be 80 w/m2
·°c, determine the rate of heat loss from
the steam per unit length of the pipe. also determine the temperature drops across the pipe shell
and the insulation

Is a measure of the resistance to flow. a high liquid has a high resistance to flow and flows slowly. the ancients thought everything in the world was made of 4 we now know that there are 94 naturally occurring and scientists have created another 24 i am certain they will create even more. honey flows slowly because it has a high to flowing. a can be separated by physical means because it contains more than one pure substance and 2 pure substances are not chemically bonded to each other. a cannot be separated by physical means. all matter is made up of all elements are with the same number of protons. if it is just a single or many bonded together, if all of them have the same number of protons, it is an element. in a piece of pure iron metal, all the are joined together, that piece of iron metal is called elemental iron. a single of iron is called elemental iron. a mixture has differences from place to place. we might need a microscope to see them or they might be obvious to the unaided eye. there are surfaces separating it into different phases. a mixture is the same everywhere. it is uniform. there are no surfaces separating it into different phases. if different kinds of atoms (different elements) are bonded together by their electrons, it is called a there are physical means of to isolate the different pure substances in a mixture and there are chemical means of to isolate the different elements in a compound. 1. element 2. compound 3. mixture 4. heterogeneous 5. homogeneous 6. pure substance 7. atoms 8. separation 9. viscosity 10. resistance

What causes most sediment to wash or fall into a river

Which reason best explains why metals are malleable? a)because they have delocalized electrons b)because they have localized electrons c)because they have ionic bonds d)because they have rigid bonds