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A wall in a house contains a single window. The window consists of a single pane of glass whose area is 0.14 m2 and whose thickness is 8 millimeter. Treat the wall as a slab of the insulating material Styrofoam whose area and thickness are 12 m2 and 0.10 meter, correspondingly. Heat is lost via conduction through the window and the wall. The temperature difference between the inside and outside is the same for the wall and the window. Of the total heat lost by the wall and the window, evaluate what is the percentage lost by the window?
a very thin circular disk of radius r 17.00 cm has charge q 10.00 mc uniformly distributed on its surface. the disk
An ideal refrigerator does 140 J of work to remove 585 J of heat from its cold compartment during each cycle. How much heat per cycle is exhausted to the kitchen
The electric field E = F/q is analagous to the gravitationalfield, g = F/m. They both describe a vector field. Describe what a vector field is. In what ways are the electric field and gravitational field the same?
a seasoned mini golfer is trying to make par on a tricky hole 5. the golfer can complete the hole by hitting the ball
how high does it rise above the point of free.
A person doing a chin-up weighs 655 N exclusive of the arms. During first 15 cm of the lift, each arm exerts an upward force of 355N on the torso. If the upward movement starts from rest, what is the person's velocity at this point.
A capacitor is charged with a 12.0V battery and is then connected to a 2.65 H inductor (at t=0sec) to form an oscillator with 12.0 Hz frequency.
A Carnot engine extracts 850 J from a 600 K reservoir during each cycle and rejects 450 J to a cooler reservoir. Find the temperature of the cool reservoir
A rotational axis is directed perpendicular to the plane of a square and is located . Two forces, 1 and 2, are applied to diagonally opposite corners, and act togther the sides of the square, first as shown in part a and then as shown in part b of..
If an piece of Iron (c = 450 J/kg C) at 65.00 C is dropped into .250 kg of ethyl alcohol at 25.00 C and the final temperature of the two comes to 35.00 C what was the mass of the piece of iron
A certain car battery with a 12.0 V emf has an initial charge of 115 A·h. Assuming that the potential across the terminals stays constant until the battery is completely discharged, for how various hours can it deliver energy at the rate of 110 W.
A small ball is located at the origin and has as charge of +3.9 nC. At a distance of 5.8 cm the electric field has a magnitude of 10422 N/C. What is the direction of the electric field, away or toward the ball
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