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A 1.12-kg aluminum pot contains 2.25 L of water. Both pot and water are initially at 19.1 °C. How much heat must flow into the pot and the water to bring their temperature up to 95.0 °C? Assume that the effect of water evaporation during the heating process can be neglected and that the temperature remains uniform throughout the pot and the water.
A playground merry-go-round has radius 2.50mand moment of inertia 2800kg?m2 about a vertical axle through its center, What is the average power supplied by the child
When a 47.0-V emf device is placed across two resistors in series, a current of 4.0 A is flowing in each of the resistors. obtain the magnitude of the larger of the two resistances
Sit on a rotating chair. Slowly twist your body in one direction and after that rapidly twist it in the other. What is going to happen? Is angular momentum conserved and if not why.
the inside and outside temperature of a carnot refrigerator are 10*C and 25*C, respectively. find the work required in each cycle
question1a man pushes a lawn mower on a level lawn with the force of 200n it 40 percent of this force is directed
A 1 pF capacitor is connected in parallel with a 2 pF capacitor, the parallel combination then being connected in series with a 3 pF capacitor. Which capacitor has the greatest charge
An airplane pulls a 24 kg banner on a cable as depicted in the figure below. When the plane has a constant cruising velocity the cable makes an angle of ? = 26°. What is the drag force exerted on the banner by the air
Light of wavelength 565 nm incident on a pair of slits produces an interference pattern on a distant screen in which the separation between adjacent bright fringes at the center of the pattern is 0.569 cm. What is the wavelength of the second sourc..
he string in a yo-yo is wound around an axle of radius 0.529 cm. The yo-yo has both rotational, What is the speed of the yo-yo when it reaches the distance of 1.50 m
A curling stone slides on ice with a speed of 2.0 m/s and collides inelastically with an identical,stationary curling stone. What fraction of the initial energy is lost in this collision
A ship sets out to sail to a point 197 km due north. An unexpected storm blows the ship to a point 107 km due east of its starting point. In what direction must it now sail to reach its original destination.
A charge of -3.9 micro-coulombs is launched from the positive plate of a large capacitor to the negative plate.
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