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2.0 kg of solid gold (Au) at an initial temperature of 1000K is allowed to exchange heat with 1.5 kg of liquid gold at an initial temperature at 1336K. The solid and liquid can only exchange heat with each other. When the two reach thermal equilibrium will the mixture be entirely solid, or will they be in a mixed solid/liquid phase? Explain how you know using equations and diagrams.
compare the energy consumption of two commonly used items in the household. calculate the energy used by a 1.40 kw
Define a lie in the strict or formal sense and explain what is meant by communication - what is the principal purpose of communication?
The voltage across a coil whendi/dt= 20 mA/s andL= 8H is ?
A 50cm long non-conducting cylinder of radius 4cm has a volume charge density of 30 uC/m^3. A grounded conducting cylindrical shell of radius 6cm is placed concentrically around the charged cylinder.
A swimming pool has dimensions 32.0 m ? 12.0 m and a flat bottom. The pool is filled to a depth of 2.30 m with fresh water. What is the force exerted by the water on the bottom
a circular radar operates at a frequency of 8 ghz and has a diameter of 0.8 m.what is the angle at the half-power
Remeber that the ice must first warm to 0 degrees C, melt and then continue warming as water.
A lightbulb is wired in series with a 184Ω resistor, and they are connected across a 120 V source. What is the resistance of the light bulb
a weight of 10 n is dropped from a height of 1.2 m onto a spring cushion pad. if the spring has an elastic force
calculate the first five energy levels for co c12o16 molecule with bond length of 112.8.assume it rotates freely in the
An inductor and a resistor are connected in series. When connected to a 60 Hertz, 90 Volt (rms) source, Find what is the inductance
Write an expression for the magnitude of the force T that the string exerts on the ball. Assume that the values of qand Q are positive. Express your answer in terms of the variables q, m, Q, r, and appropriate constants.
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