A block of aluminum at a temperature of T,-30.5 degrees C has a mass ofm,-15 kg. It is brought into contact a mass of m2-0 5ml, at a temperature of T2-13 degrees C. This aluminum has a heat capacity k of aluminum with 33% Part (a) Input an expression for the final temperature of the blocks. 33% Part (b) What is the temperature in degrees C? 33% Part (c) was What was the heat transfer to block 1, n joules? Grade S Deducti Potentia

What is the fate of the electrons that interact with a specimen in an electron microscope?

Clothing made of several thin layers of fabric with trapped air in between, often called ski clothing, is commonly used in cold climates because it is light, fashionable, and a very effective thermal insulator. so it is no surprise that such clothing has largely replaced thickand heavy old-fashioned coats. (a) consider a jacket made of five layers of 0.1-mm-thick synthetic fabric (k = 0.13 w/m·°c) with 1.5-mm-thick air space (k = 0.026 w/m·°c) between the layers. assuming the inner surface temperature of the jacket to be 28°c and the surface area to be 1.25 m2, determine the rate of heat loss through the jacket when the temperature of the outdoors is 0°c and the heat transfer coefficient at the outer surface is 25 w/m2·°c. (b) what would your response be if the jacket is made of a single layer of 0.5-mm-thick synthetic fabric? what should be the thickness of a wool fabric (k = 0.035 w/m·°c) if the person is to achieve the same level of thermal comfort wearing a thick wool coat instead of a five-layer ski jacket?

Which of the following is not a transverse wave? a) soundb) lightc) radiod) all of thesee) none of these