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A 249.0 kg block of ice at 0*C is placed in a large lake. The temperature of the lake is just slightly higher than 0*C, and the ice melts.
1) What is the entropy change of the ice?
2) What is the entropy change of the lake?
3) What is the entropy change of the universe, that is, the ice plus the lake?
A projectile is fired at time t = 0.0 s, from point 0 at edge of a cliff, with initial velocity components of vix=30m/s and viy = 100m/s. The projectile rises, and then falls into the sea at point P. The time of flight of the projectile is 20s.
In daily life we see many cases of people who are caught misrepresenting things who soon thereafter are excused and accepted by their contemporaries. How is This different in science.
A racing car travels with a constant tangential speed of 75 m/s around a circular track with a radius 625 m. Find (a) the magnitude of the car's total acceleration and (b) the direction of its total acceleration relative to the radial direction.
What is the energy stored in the inductor after the switch has been closed for a very long time? Take V = 15 V, R = 1400 ? and L = 20 mH
A simple harmonic oscillator with m=0.815 kg and total energy E=135 J has amplitude 1.35m, Find the maximum acceleration
A fish at a depth of 30 m is neutrally buoyant, What fraction of the original number of air molecules that were in the air bladder remains when the fish is at the surface
A 14-Ω coffee maker and a 14-Ω frying pan are connected in series across a 120-V source of voltage. Find the total current supplied by the source of voltage
Newton's universal constant of gravitation is G = 6.67 × 10-11 meters cubed (m3) per kilogram per second per second. The Sun's mass is M = 1.9891 x 10^30 kilograms. Earth's orbital period is P = 365.256366 days. Obtain the average radius of Earth's o..
A 990 g block oscillates on the end of a spring whose force constant is k = 66 N/m. What is the fractional decrease in amplitude per cycle
What is the electric potential energy of a system that consists of two protons 2.1×10?15 m apart-as might occur inside a typical nucleus
Meanwhile, Isaac is piloting his ship in the westward direction, also at 0.89, toward Albert's ship. With what speed does Isaac see Albert's light beam pass his ship.
Compute average magnetic flux through turn of inner solenoid
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