How do I calculate the final temperature of this mixture?

A 150 gram aluminum container contains 100 grams of water at 30 C, 50 grams of copper is add at 100 C and 40 grams of ice at 0 C. How do I calculate the final temperature of this mixture?

Reactions with Ni precipitate and a problem concerning Boiling/Cold water for fan movement

I have two solutions one is green with Ni 2+ in it and the other is colorless. When the colorless solution is poured into the Ni2+ solution there is a red precipitate that forms. What is the red precipitate? I have two cups one is filled with hot water and the other is filled with cold water. THere is a split copper wir ...continues

Solar Power and Temp of earth

How can I calculate the solar power intercepted by the earth and the average temperature of the earth to radiate this power? e=1

Fourier

Consider a function f(t) that is zero for t<0 and equals e^-t/2r for t>=0. Find its Cosine and Sine Fourier Transforms A(w) and B(w). Make a nice plot of A(w) and B (w). Find a convenient value of tau. (See attachment for other questions)

Sound

To broadcast a signal s(t) the carrier frequency amplitude is made proportional to s(t), for example: f(t) = (1+s(t))cos(2pi*v0*t). (i)Sketch the spectrum that the station's transmitter is broadcasting. (See attachment for full background and questions)

Sound

Problem 6. Assume that the outer ear canal is a cylincrical pipe 3cm long, closed at one end by the eardum. Calculate the resonant frequency of the pipe. (See attachment for full questions)

static equlibrium

Q2- as a part of an exercise regime,,a lady lifts herself up from standing position at the rest,wth wait distributed normally across the soles of her feet,onto tiptoe(standing on 2 feet)which muscle group she is exercising ?is it possible to achieve the static equilibrium by loading only one muscle group?if so draw a free body d ...continues

Heat

I need help determining how much a cube's temperature will cool down if it has lost 30369994.2 W The problem involved an iron cube 10 cm on a side at 1000 K and is suspended in a box. The walls of the box are at room temp 300K. With e=.9 I calculated the rate at which the cube was radiating heat by using P=sigma*A*e* ...continues

velocity

The scenerio: A speeding motorist initially travelling at a speed of Vi m passes a police officer and immediately decelerates. The policy officer is initially at rest but immediately accelerates towrds the motorist the instant the motorist passes by. Interesting, the police officer's rate of acceleration and the motorist's ra ...continues

Heat and thermodynamics: Saturated vapor pressure

A 1-m3 rigid tank contains 10 kg of water (in any phase or phases) at 150°C. The pressure in the tank is: