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A metal rod of mass .22kg lies across two parallel conducting rails that are a distance of .52 m apart on a tabletop. A 3.0 Ω resistor is connected across the left ends of the rails. The rod and rails have negligible resistance however significant friction with a coefficient of kinetic friction of .20. There is a magnetic field of .80T perpendicular to the plane of the tabletop. A string pulls the metal rod to the right by a constant speed of 1.8 m/s. Compute the magnitude of the current induced in the loop formed by the rod, the rails, and the resistor. Compute the magnitude of the force required to pull the rod to the right with constant speed. Compute the energy dissipated in the resistor in 2 sec. Compute the work done by the string pulling the rod in 2sec. Contrast your answers to parts c and d. Provide a physical explanation for why they are equal or unequal.
A 2.40-kg object has a velocity (5.60 - 1.20 ) m/s. (Note: From the definition of the dot product, v2 = · .) What is its kinetic energy at this moment
A student sits on a rotatingstool holding two 2.0kg objects. When his arms are extendedhorizontally, the objects are 1.0 m from the axis of rotation, andhe rotates with an angular speed of 0.75 rad/s. Find the new angular speed of the student
Two students decided to fling balloons filled with M1=68.1 grams ofice water at coeds who are sun batheing on the roof of a sororityhouse two blocks east of the physics bulding. find the maximum angular velocity achieved by the trebuchet
An automobile tire has a volume of 0.0185 m3. If the pressure in the tire is 500 kPa and the temperature is 298 K, how many molecules are there inside the tire
At the local swimming hole, a favorite trick is to run horizontally off a cliff that is 6.2 meter above the water. calculates the number of revolutions she makes while on the way down
A solid cylinder rolls down an incline plane without slipping. If the center of mass of the cylinder has a linear acceleration of 2.67 m/s2
A wooden plank is placed over a pit that is 5.00 m wide. A student stands in the middle of the plank and begins jumping upand down such that she jumps two times each second. What is the speed of the travsverse waves on the plank
An organ pipe is 2.0 m long. Assume the pipe is cylindrical withone closed and one open end. what is the wavelength of the 2nd harmonic?
A container has a large cylindrical lower part with a long thin cylindrical neck. The lower part of the container holds 12.5 m3 of water and the surface area of the bottom of the container is 4.64 m2. The height of the lower part of the container is ..
Ice at 0 degrees Celsius and at a pressure of 1 atmosphere has a density of 916.23 kg m^-3 while water under these conditions has a density of 999.84 kg m^-3
what is the mass of the earths atmoshere (the radius of the earth is 6.37 x 10^6 m, and atomosheric pressure at the surface is 1.013 x 10 ^5 N/m^2)
a train has a length of 109 m and starts from rest with a constant acceleration at time t 0 s. at this instant a car
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