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You drop a 299-g silver figure of a polar bear into the 215-g aluminum cup of a well-insulated calorimeter containing 271 g of liquid water at 22.5°C. The bear\'s initial temperature is 99.1°C. What is the final temperature of the water, cup, and bear when they reach thermal equilibrium? The specific heats of silver, aluminum, and liquid water are, respectively, 234 J/(kg·K), 910 J/(kg·K), and 4190 J/(kg·K). Please answer in Celsius!
Two masses are connected by a string which goes over an ideal pulley. Block A has a mass of 4.75kg and can slide along the smooth plane inclined by 37.0 degrees above the horizontal. The masses remain stationary. a) draw a free body diagram b) what m..
The mean free path of nitrogen molecules at 10°C and 1.6 atmis 0.293 x 10-5cm. What is the molecular diameter
concrete has a higher specific heat than soil does. use this fact to explain partially why cities have a higher average
A wire with a length of 3.6m and a mass of 0.78kgis in a region of space with a magnetic field of 0.86T. What is the minimum current needed to levitate the wire
Carol and robin share a house. to get to work carol walks north 1.5 km while robin drive west 7.5 km. How far part are their work place
In Europe, a large circular walking track with a diameter of 0.900 km is marked in angular distances in radians. How many radians should he walk per day to maintain his daily routine
An air bubble ascends from the bottom of a lake 15 m deep. The temperature at the bottom of the lake is 4oC, what would be the volume of the bubble at the top of the lake?
A certain elevator cab has a total run of 201 m and a maximum speed is 315 m/min, How far does the cab move while accelerating to full speed from rest
The graph below shows the rotational behavior of an object with moment of inertia of 16 kgm. Calculate the magnitude of the constant average torque that acted on the system
What are the x- and y-components of the electric field at (x, y) = (0 m, +4 m)? (a)Two charges are placed on the x-axis: one is placed at x = 3 m and the other is at x = -3 m.
The length of a simple pendulum is 0.65 m and the mass of the particle (the "bob") at the end of the cable is 0.26 kg. What is the angular frequency of the motion
A photon with wavelength 4 x 10^-15m converts to a muon/antimuon pair. The rest mass energy of the muon and the antimuon is 105.7 Mev. find the combined kinetic energy of the muon and antimuon
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