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An electric power station is producing 1.60 × 103 W of power that is to be sent to a small town located 10 km away. Each of the two wires that comprise the transmission line has a resistance per kilometer of length of 5.50 × 10-2 Ω/km. Find the power lost in heating the wires if the voltage is stepped up from 120 V to 1500 V using an ideal transformer.
A 0.150-kg glider is moving to the right on a frictionless,horizontal air track with a speed of 0.80 m/s. Find the final velocity (magnitudeand direction) of each glider if the collision is elastic
Consider two masses ( treat as point masses) of mass m=1.5 kg and m=2.5 kg held together by a massless rod of length 2a=2.0 m and free to pivot at the center of the rod.
a runner with a mass of 60kg accelerates from 0 to 9 ms in 3 s. fin a runner with a mass of 60kg accelerates from 0 to
A standard 100 Watt (120 Volt) light bulb contains an 8.00 centimeter long tungsten filament. The high-temperature resistivity of tungsten is 9.0 ×107 Ωm. Compute what is the diameter of the filament
A wheel 2.00 m in diameter lies in a vertical plane androtates with a constant angular acceleration of 4.00rad/sec2. find the angular speed of their wheel
A person who weighs 605 N is riding a 98-N mountain bike. Suppose the entire weight of the rider and bike is supported equally by the two tires. If the gauge pressure in each tire is 890000 Pa, what is the area of contact between each tire and the gr..
gravitational infall calculate the required mass accumulation rate to the present sun from r 8 to r rs radius of sun
A metal sphere of radius R = 30 cm carries a total charge Q = 2.0 µC. What is the magnitude of the electric field at a point 5 m away? The point is located on the positive x-axis, where the center of the sphere is located at the origin.
A 300 N box is placed on a frictionless inclined plane that makes a 22.0° angle with the horizontal. What is the normal force of the ramp on the box
In science and technology, vectors provide a simple model for visualizing difficult concepts such as force, velocity, and electric fields. Vectors are essential for creating the amazing computer graphics we see today. Dot product of vectors is an ope..
Draw a simplified lever system showing the location of the pivot and the weight of USS Constitution. Determine if there is a resultant moment on USS Constitution that should result in trim or list.
An electron in an oscilloscope is accelerated as a result of the potential difference between the cathode and anode. determine the voltage drop from cathode to anode
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