Recent content by hattori_hanzo

Hello, and sorry for my English, as I am Norwegian. I have a statics problem which I can not understand. I've taken a pic from my book: The problem asks me to find the largest bending stress, σb, in the incisions 1 and 2. I have the solution in front of me, I just don't understand...

Thanks a lot, will give this another try tomorrow!

what is the H_ice? The specific melting heat (L)? Sorry, doing this in another language.

Sorry, didn't really understand this. Since the ice isn't in it's final state here, what do I do when adding up the total energy? Do I just add 0,15kg of WATER with an initial temp. of -25 C? Guess not, since that has a different heat capacity?

Wow, thanks! But is it right to add BOTH the mass of the ice and the water from the ice when adding the total heat? Because that will be 2x0,15kg. Or do I just add that once? I got a final temperature of 16,2 C. That sounds about right, don't it?

Thanks. But I'm not sure how to distribute the remaining heat to the remaining components. Because an equal amount of heat is not distributed to the different components? How much heat is distributed depends on the specific heat capacity, mass etc? And how do I find the total heat capacity of...

When heat is added to the -25 C ice, the temperature of the ice will increase until it reaches 0 C. Then there will be a phase change, and the ice will slowly turn into water. And all the energy used to do this will be taken from the 20,2 water, and the 20,2 C kettle. Right? So I know that...

I have a kettle of aluminum with the mass of 1,10kg. There's 1,15kg of water in it, with the temperature of 20,2 C. The water is cooled with ice cubes. 150g of ice with a temperature of -25 C are poured in. What is the final temperature? I'm relatively new to physics, and I haven't solved...