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An electric utility company supplies a customer's house from the main power lines (120 V) with two copper wires, each of which is 80.0 m long and has a resistance of 0.110 ? per 300 m.
(a) Find the potential difference at the customer's house for a load current of 109 A. V
(b) For this load current, find the power delivered to the customer. kW
a thin double convex lens is to focus the image of an object onto a screen so that the image is life sized. how far is the screen from the object
A uniform disk with a mass of 130 kg and a radius of 1.1 m rotates initially with an angular speed of 950 rev/min. How much work must this force do to stop the wheel
Find the thermal conductivity of the material from which the box is made.
A race car has a mass of 703 kg. It starts from rest and travels 40.0 m in 3.0 s. The car is uniformly accelerated throughout the entire time. What net force is exerted on it.
Write the input- output relationship for an ideal integrator. Determine the zero- input and zero-state components of the response
What is the magnitude of the apparent weight of a 83 astronaut 4600 from the center of Earth's Moon in a space vehicle moving at constant velocity.
A wheel has eight spokes and a radius of 33.0 . It is mounted on a fixed axle and is spinning at 2.80 . You want to shoot a 38.0 long arrow through the wheel, parallel to this axle, without hitting any of the spokes. Assume that the arrow and the ..
A thermos contains 159 cm3 of coffee at 93.7 °C. To cool the coffee, you drop two 13.2-g ice cubes into the thermos. The ice cubes are initially at 0 °C and melt completely. What is the final temperature of the coffee in degrees Celsius? Treat the..
A 1.2kg block slides along a frictionless surface at 1.5m/s . A second block, sliding at a faster 4.8m/s, what is the mass of the of the second block
A hunter aims directly at a target (on the same level) 113 m away. If the bullet leaves the gun at a speed of 255 m/s, by how much will it miss the aim.
A mortar crew is positioned near the top of a steep hill. Enemy forces are charging up the hill and it is necessary for the crew to spring into action.
You are told that the linear "drag coefficient" due to air resistance for a particular object is 0.32 N · s/m, Find the magnitude of the terminal velocity of this object when dropped from rest
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