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Question: On land, coal is transported primarily by train. A typical large coal train may be about a 1.5 km long and consists of 120 cars each holding 110 tons of coal. As each ton of coal has an equivalent energy (bituminous coal with 27 MJ/kg) content, a moving coal train represents a flow of energy or a power. For such a coal train traveling at 100 km/h, calculate the equivalent power in Watts.
Two doors of the same unknown dimension lay inline and parallel horizontally to one another (Example: As viewed from above in an architectural drawing.
A ball of mass 0.350 kg is swung at the end of a 2.40m string such that the plane of its path is horizontal, find the angle which the string makes with the verticle
Determine the magnetic flux through a circular loop 4.0 centimeter in diameter oriented with the loop normal at 27 degree to a uniform 80 mT magnetic field
A car (mass = 1100 kg)is traveling at 32 m/s when it collides head on with asport utility vehicle (mass =2500 kg) traveling in the opposite direction. In the collision, the two vehicles come to a halt. At what speed was the sport utility vehicle ..
A hollow spherical shell (radius R) carries a surface potential V(r=R, teta, Phil) = kcos(Squared) teta, sine teta. Find the potential inside and outside of the cylinder, explicitly evaluating the first four nonzero coefficients in each case.
An electron is accelerated by a 4.5 kV potential difference. How strong a magnetic field must be experienced by the electron if its path is a circle of radius 5 cm.
A ball on the end of a string is revolved at a uniform rate in a vertical circle of radius 72.0 centimeter. find the tension in the string when the ball is at the top of its path
A solid ball of radius r=1cm rolls down at an incline of theta =30 deg which is 1 meter high. what is the speed the bottom of the incline
How much heat does it take to increase the temperature of 4.50 moles of a diatomic ideal gas through an amount 40 if the gas is held at constant volume? The gas molecules can translate and rotate but not vibrate.
A bucket of water with a mass of 2.0 kg is attached to a rope that is wound around a cylinder. What is the acceleration of the bucket
A 41.0 kilogram ballet dancer stands on her toes during a performance with four square inches (26.0 cm2) in contact with the floor. Evaluate the pressure exerted by the floor over the area of contact
1) An electric generator rotates a conducting coil with 58 turns through a magnetic field of 6.13x10^-3 T with an angular frequency of 5.0x10^5 Hz. If the coil has an area of 6.95m^2, what is the RMS voltage generated by the generator?
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