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300 grams of water at 0 degrees are placed in a copper container weighing 120 grams in which 35 grams of ice (at 0 degrees also). 17 grams of steam at 100 degrees are fed in and completly condensed to water.
What is the temperature of the resulting mixtures.
The athlete shown in the figure rotates a 1.00 kg discus along a circular path of radius 1.07 m. find the magnitude of the maximum radial acceleration of the discus
In a hydraulic system, the piston on the left has a diameterof 5.1 cm and a mass of 1.7 kg. what is the height difference between the two pistons
A soccer player extends her lower leg in a kicking motion by exerting a force with the muscle above the knee in the front of her leg. What is the force exerted by the muscle if its effective perpendicular lever arm is2.00 cm
A battery with an emf of 12.6 V and internal resistance of0.83Ω is connected across a load resistor R. If the current inthe circuit is 0.85 A, what is the value of R? What power is dissipated in the internal resistance of the battery?
For the 20.0 cm displacement, what is the net work done on the package by the three applied forces, the gravitational force on the package, and the normal force on the package?
When a large star becomes a supernova, its core may be compressed so tightly that it becomes a neutron star, with a radius of 20 km (about the size of San Francisco). If a neutron star rotates once every second, (a) what is the speed of a particle..
A parallel-plate capacitor has plates by an area of 300 cm2 separated by 1.6 mm. What is the electric field among the plates when they are charged with 2.200×10-6 C?
a battery with an internal resistance rint can be modeled as an ideal battery in series with a resistor rint suppose a
Two small metallic spheres, each of mass m = 0.25 g, are suspended as pendulums by light strings from a common point, what is the magnitude of the charge on each sphere
the hot dog cooker described in the chapter heats hot dog by connecting them to 91 v house hold electricity. a typical
For each of the currents listed in table 2, and using the inductance of the coil found by experiment, determine the total stored energies in the coil
You are standing on a sheet of frictionless ice and throw a ball of mass 0.640 kg horizontally at a speed of 8.00 m/sec to your friend. Your mass is 75.4 kg, and your friend’s mass is 38.0 kg.
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