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In a specific heat experiment 210.0 grams of aluminum (C=913.0 J/kg.K) at 100.0°C) is mixed with 36.0 g water at 20.0°C.
A) Calculate the equilibrium temperature in °C.
B) Find the entropy change of the aluminum.
C) Find the entropy change of the water.
D) Calculate the entropy change of the system. Please use my numbers!
A satellite is in circular orbit around the Earth at a distance of 7.14RE with a speed of 2.96 km/s. With what speed would the satellite hit the Earth's surface
Two parallet wires separated by 7.0 cm repel each other with a force per unit length of 1.5 x 10^-4 N/m. The current in one wire is 3.0 A
Two small spheres spaced 20centimetres apart have equal charge. How many excess electrons should be present on each sphere if magnitude of the force of repulsion between them is newtons.
A diffraction grating has 4436 lines/cm. Light that contains all wavelengths between 447 and 650 nm shines on the grating. Calculate the width of the dark area
A 1200 turn coil of wire that is 3.00 cm in diameter is in a magnetic field that drops from 0.750 T to 0 T in 15.0 ms. What is the induced emf in the coil
A variable-speed drill, initially turning at 250 rpm, speeds up to 1300 rpm in a time interval of 0.1 s. What is its average rotational acceleration
The blood flow speed through an aorta with a radius of 1.00 cm is 0.365 m/s, If aorta constricts to a radius of 0.800 cm, how much does blood flow speed increase
X-rays with an energy of 300 KeV undergo Compton scattering from a target. What is the speed of the recoiling electron
A laboratory electromagnet produces a magnetic field of magnitude 1.38 T. A proton moves through this field with a speed of 6.06 multiply.gif 106 m/s. find the magnitude of the maximum acceleration of the proton
An X-ray photon with a wavelength of 0.120 nm scatters off a free electron at rest. What is the kinetic energy of the scattered electron
A soccer ball with a mass of 448g bounces off the crossbar of a goal and is deflected upward at an angle of 56.2° with respect to horizontal. Immediately after deflection, the kinetic energy of the ball is 47.70 J. What are the vertical and horizo..
A block with mass m = 16.0 kg rests on a frictionless table and is accelerated by a spring with spring constant k = 4997.0 N/m after being compressed a distance x1 = 0.548 m from the spring's unstretched length. find the speed of the block right af..
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