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Suppose that 250g of water at 85oC is mixed with 25g of ice at 0oC in an insulated container of negligible heat capacity. [Lf,water=33.4*104J/kg, cwater = 4186J/kgoC]
a. What is the final temperature of the system?
b. How much of the ice has melted?
A careful photographic survey of Jupiter's moon Io by the spacecraft Voyager 1 showed active volcanoes spewing liquid sulfur to heights of 70 km above the surface of this moon
A bowling ball made for a child has two thirds the radius of an adult bowling ball. They are made of the same material (and therefore have the same mass per unit volume). By what factor is the mass of the child's ball reduced
q1. two speakers 6.00 m apart are driven by the same audio oscillator so that each one produces a sound consisting of
An object with mass m1 = 3.20 kg, rests on a frictionless horizontal table and is connected to a cable that passes over a pulley, Find the magnitude of the acceleration of each object
You are participating in league bowling with your friends. Time after time, you notice that your bowling ball rolls to you without slipping on the flat section of track. What is the magnitude of the angular acceleration of the ball
A drag racer starts from rest and accelerates for 12.3 s with a constant acceleration until it has travelled 400 m. What is the stopping distance for the drag racer
Battery-powered electricity is very expensive compared with that available from a wall receptacle. Estimate the cost per kWh of an alkaline D-cell
A 2.00 kg stone is tied to a thin, light wire wrapped around the outer edge of the uniform 10.0kg cylindrical pulley shown in the figure below. Find the acceleration of the stone
A 243-g ball falls vertically downward, hitting the floor with a speed of 2.48 m/s, Calculate the magnitude of the change in the ball's momentum
An air-track glider is attached to a spring. The glider is pulled to the right and released from rest at. It then oscillates with a period of 1.5 and the maximum speed of 32.
Interactive LearningWare 18.2 provides one approach to solving problems such as this one. Determine the net force exerted on q1 by the other two charges
The spaceship Lilac, based on the Purple Planet, is 791 m long, as measured at rest. When Lilac passes Earth, Terran observers measure its length to be 733 m.
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