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A calorimeter consists of a massless beaker that contains 25.0 grams of solid water (i.e., ice) at -30oC. Then 200 grams of iron at 70.0 oC are added to the calorimeter.
a) Find the final temperature of the calorimeter after equilibrium is reached.
b) If the final temperature is 0oC, what fraction of the ice is melted?
A radioactive sample produces 46035 decays per minute at one point in an experiment and 308.09 days later produces 837 decays per minute. What is the mean lifetime of the material
question a person pulls a toboggan for a distance of 34.8 m along the snow with a rope directed 32.2 degrees above the
Two capacitors are connected to a battery. The battery voltageis V = 80 V, and the capacitancesare C1 = 2.00 μFand C2 = 4.00 μF. Determine the total energy stored by the two capacitors when they are wired (a) in paralleland (b) in series.
A series combination of an R = 13.0kohm resistor and an unknown capacitor C is connected to a V = 14.7 V battery. Determine the capacitance of the capacitor
A small statue is recovered in an archaeological dig. Its weight is measure to be 211.2 lb and its volume 0.176ft3. What is the statue's weight density
two charges are located on the x axis q1 6.0 microc at x1 4.0 cm and q2 6.0 microc at x2 -4.0 cm. two other charges
how does friction applied to the hot wheels track, Why would 20 degrees have a higher range (delta x) than 15-20 degrees
Consider a pump that is required to compress air in a factory. The cylinder in the pump has an inner diameter of 2.00 cm and length 60.0 cm. Calculate the volume and temperature of the compressed air
Water moves through a constricted pipe in steady, ideal flow. At the lower point the pressure is 1.73 105 Pa and the pipe radius is 3.00 cm. Find the volume flow rate through the pipe
A 640- hollow ball 25cm in diameter is suspended by a wire and is undergoing torsional oscillations at a frequency of 0.78 Hz .What is the torsional constant of the wire?
A person, sitting on a stool rotating at a rate of 21 rpm, holds masses in each hand. When their arms are outstretched , the total rotational inertia of the system is 3.7 kg·m2. what is the new angular velocity of the system
The transformation rule for the strain tensor under a rotation is [ε'] = [Q] [ε ] [Q]T . Why is not possible to find a matrix [A] such that [ε ‘] = [A] [ε]? Write down three quantities that you know to be invariant under the rotation.
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