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A tube leads from a 0.150 kg calorimeter to a flask in which water is boiling under atmospheric pressure. The calorimeter has specific heat capacity 420 J/(kg?K), and it originally contains 0.340 kg of water at 15.0 ?C. Steam is allowed to condense in the calorimeter at atmospheric pressure until the temperature of the calorimeter and contents reaches 71.0 ?C, at which point the total mass of the calorimeter and its contents is found to be 0.525 kg.
Compute the heat of vaporization of water (Lv) from these data.
Three capacitors, C1, C2 = 2C1 and C3 = 3C1 are connected in parallel to a voltage source of value V. What is the voltage across each capacitor when all three switches are closed
The wave function y(x, t) for a certain standing wave on a string fixed at both ends is given by y(x, t) = 3.70 sin (0.220x) cos (270t), What is the speed of transverse waves on this string
A small metal ball is given a negative charge, then brought near (i.e., within a few millimetres) to end A of the rod. What happens to end A of the rod when the ball approaches it closely this first time.
When jumping, a flea reaches a takeoff speed of 1.2 m/s over a distance of 0.46mm, What is the flea's acceleration during the jump phase and How long does the acceleration phase last
You measure the length of a futuristic car to be 3.50m when the car is at rest relative to you. what result do you get
The diodes are oppositely oriented, so that when one diode is forward-biased, the other is back-biased. Which phrase best describes the current in the circuit.
The bulk modulus for a given fluid is 1.85E+9 Pa, and the fluid density is 1000.0 kg/m3. What is the bulk modulus of this fluid
Positive electric charge is distributed in the shape of an infinitely long insulating cylinder of radius R and volumetric charge density ?=?0(1-r/R), Find an expression for the linear charge density
A down jacket has a surface area of 0.83 m2 and is filled with a 3.6 cm thick layer of down, which has a thermal conductivity of 6.0 10-6 kcal/(s · m · C°). At what rate is heat conducted through the coat
A Ball begins rolling at the left and has just suffient energy to climb up to point C, which is the top of the hill on the right
Transverse waves with a speed of 59.0 m/s are to be produced on a stretched string. A 4.95-m length of string with a total mass of 0.0600 kg is used. (a) What is the required tension in the string? N (b) Calculate the wave speed in the string if t..
A 1.20 kg mass on a horizontal spring oscillates on a frictionless surface with a displacement as a function of time given by x(t) = 0.075cos(4.16t â€" 2.45). Find the total energy of the oscillating spring
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