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An electric power station is producing 1.2 x 10+3 W of power that is to be sent to a small town located 13 km away. Each of the two wires that comprise the transmission line has a resistance per kilometer of length of 5 x 10-2 Ohms /km. Find the power lost in heating the wires if the voltage is steped up from 150 V to 1400 V using an ideal transformer. Watts
A motorist driving along a straight road at a constant speed of 60 -m/s. At time t=0 she passes a parked motorcycle police officer and begins to accelerate at the constant acceleration.
Use the table shown below to determine the energy in eV of the photon emitted when an electron jumps down
1300-L rigid tank contains 16 kg of refrigerant-134a vapor at 320 kPa. The refrigerant is cooled until the temperature reached -14oC. Determine the internal energy change for this process
q1. a 97 kg man drops from rest on a diving board -2.8 m above the surface of water and comes to rest 0.68 s after
What is the force of friction and its coefficient of friction if a 5 kg box slides on a horizontal plane when its speed decreases 1.5ms-1 in a second?
A large circus ride has a centripetal acceleration at 6.0 m/s2. If the circular ride has a radius of 11.0 m, what is its velocity at the edge
Wingspan 64 m spread, 38 m swept Total Wing area Aw = 54.5 m2 Drag profile area Ap = 11.5 m2 Mass 27,700 kg fully loaded 2 x GE F110 Turbofan engines Thrust 61.4 kN from each engine
A horse drags a 100 kg sled a distance of 4 km in 20 minutes. What is the coefficient of sliding friction between the sled and the ground
The index of refraction of crown glass for violet light is 1.528, while for red light it is 1.514. What is the speed of violet light in crown glass
A reinforced concrete column 400mm by 400mm and 3.5m high is subjected to a load 160kN. The column shortens by 0.07mm. What is the strain in the column
The center of mass for a 1 meter stick is at 49.7cm when placed on an fulcrum. Calculate the net clockwise torque on the meter stick
A 500 nm wavelength light illuminates a soap film with an index of refraction 1.22 to make it look bright. what is the minimum thickness of the film
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