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You cool a 195.0-g slug of red-hot iron (temperature 764.0°C) by dropping it into an insulated cup of negligible mass containing 82.0 g of water at 17.0°C. Assuming no heat exchange with the surroundings, what is the final mass of the iron and the remaining water to the nearest 0.1g? [Hint: ciron = 0.470 kJ/(kg⋅K), cwater = 4.190 kJ/(kg⋅K), Lv,water = 2256 kJ/kg.]
Two equally charged insulating balls each weigh 0.10 g and hang from a common point by identical threads 30 cm long. What is the magnitude of the charge on each ball
The element lead, Mass = 207.2 g/mol , has a density of 11.35 g/cm3. Find the number of atoms per cubic centimeter. If the total gamma ray cross section at 3 MeV is 14 barns, what are the linear attenuation coefficient and the half-thickness?
A switch that connects a battery to a 22 μF capacitor is closed. Several seconds later you find that the capacitor plates are charged to 30 μC. What is the emf of the battery? Express your answer with the appropriate units.
How do you find ground reaction impulse at landing given mass, height, and COM?
A student sits on a rotating stool holding two 2.6-kg objects. When his arms are extended horizontally, the objects are 1.0 m from the axis of rotation and he rotates with an angular speed of 0.75 rad/s. Find the new angular speed of the student
Find the magnitude and direction of the magnetic field at point p due to two 1.50mm segments of wire (not the entire wire) that are opposite each other and each 8.00cm from p.
A metal wire of mass m=24.1 mg can slide with negligible friction on two horizontal parallel rails separated by distance d= 2.56 cm. what is the speed and direction of the wire
The coefficient of volume expansion of coffee is the same as that of water. How much coffee (in cubic meters) has spilled out of the beaker.
A red race car is traveling side by side a blue race car at aconstant speed of 130km/h. At this point the blue car decides tostop in the pits for a tire change. How far behind the red car was the blue car
A 65 g ice cube at 0°C is heated until 40 gram has become water at 100°C and 25 g has become steam at 100°C. Find how much energy was added to accomplish the transformation
How many half life's of Potasium radioactive decay are needed to give this 15 billion year age?
Find what wide range of functions can eyeglasses be made to perform? Identify the various functions; explain what is required and how it is accomplished
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