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The electric motor of a model train accelerates the train from rest to 0.665 m/s in 25.0 milliseconds. The total mass of the train is 875 gram. Determine the average power delivered to the train during the acceleration.
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A generator is made from a set of 7000 loops of area 5.00 cm2rotating at an angular frequency of 600 radians per second. Themagnetic field is created by a solenoid, completely surrounding thegenerator coil, and carrying a current of0.500 A.
A 2 kg block is initially at the bottom of a 30 incline with a speed of 12m/s going up the incline. the coefficient of kinetin among the block and the incline is μk = 0.3. Draw a force diagram on the block as it moves up the incline. Some of the forc..
The hemisphere is placed on its flat surface, with the center directly over a 2.5 mm long line drawn on a sheet of paper. What length of line is seen by someone looking perpendicularly down on the hemisphere?
A 50 Newton horizontal force pushes a 10 kilogram mass sitting on a horizontal surface towards the right. What is the acceleration of the mass and its direction
You travel from "point" Columbia to St. Louis in a car moving at a constant speed of 60 km/h. What is your average speed for the entire trip
Suppose you are planning a trip in which a spacecraft is to travel at a constant velocity for exactly nine months, how fast must you travel
An ideal gas is allowed to expand adiabatically until its volume increases by 50%. By approximately what factor is the pressure reduced
The staples inside a stapler are kept in place by a springwith a relaxed length of 0.115 m. If the spring constant is 51.0N/m, how much elastic potential energy is stored in the spring
The maximum magnetic field, or Bo, is 0.010 T in an electromagnetic wave. What is the average intensity of this wave
a 1cm-tall object is 6cm in front of a converging lens with a focal length of 10cm. Use ray tracting to determine the location of the image on graph, Calculate the image position and height using the lens equation
In a large centrifuge used for training pilots and astronauts, a small chamber is fixed at the end of a rigid arm that rotates in a horizontal circle. find the angular acceleration in the second training exercise
A 6.90-g lead bullet traveling at 420 m/s is stopped by a large tree. what is the increase in temperature of the bullet
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