You are working in a factory that produces long bars of copper with a square cross section. In one section of the production process, the bars must slide down a plane inclined at an ang 8 = 23.5° to the horizontal. It has been found that the bars travel with too high a speed and become dented or bent when they arrive at the bottom of the plane and must be discarded In order to prevent this waste, you devise a way to deliver the bars at the bottom of the plane at a lower speed. You replace the inclined plane with a pair of parallel metal rails, shown the figure below, separated by a distance = 1.80 m. teo B m The smooth bars of mass m = 1.00 kg will slide down the smooth rails, with the length of the bar always perpendicular to the rails. The rails are immersed in a magnetic field of magnitude B, and a resistor of resistance R = 1.602 is connected between the upper ends of the rails. Determine the magnetic field necessary (in T) in your device so that the bars will arrive at the bottom of the plane with a maximum speed v= 1.00 m/s. (Enter the magnitude.)

You are working in a factory that produces long bars of copper with a square cross section. In one section of the production process, the bars must slide down a plane inclined at an ang 8 = 23.5° to the horizontal. It has been found that the bars travel with too high a speed and become dented or bent when they arrive at the bottom of the plane and must be discarded In order to prevent this waste, you devise a way to deliver the bars at the bottom of the plane at a lower speed. You replace the inclined plane with a pair of parallel metal rails, shown the figure below, separated by a distance = 1.80 m. teo B m The smooth bars of mass m = 1.00 kg will slide down the smooth rails, with the length of the bar always perpendicular to the rails. The rails are immersed in a magnetic field of magnitude B, and a resistor of resistance R = 1.602 is connected between the upper ends of the rails. Determine the magnetic field necessary (in T) in your device so that the bars will arrive at the bottom of the plane with a maximum speed v= 1.00 m/s. (Enter the magnitude.)

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

See similar textbooks

Similar questions

Some incandescent light bulbs are filled with argon, because it is an inert gas. An argon atom has a mass of 6.63 ×10−26×10-26 kg. A)what is the rms speed in meters per second for argon atoms near the filament assuming their tempature is 2650k
a) A student is experimenting with some insulated copper wire and a power supply. She winds a single layer of the wire on a tube with a diameter of dsolenoid = 10.0 cm. The resulting solenoid is ℓ = 70.0 cm long, and the wire has a diameter of dwire = 0.100 cm. Assume the insulation is very thin, and adjacent turns of the wire are in contact. What power (in W) must be delivered to the solenoid if it is to produce a field of 7.20 mT at its center? (The resistivity of copper is 1.70 ✕ 10−8 Ω · m.) What If? Assume the maximum current the copper wire can safely carry is 20.0 A. b) What is the maximum magnetic field (in T) in the solenoid? (Enter the magnitude.) c) What is the maximum power (in W) delivered to the solenoid? Note: See image for the original question
Collectible coins are sometimes plated with gold to enhance their beauty and value. Consider a commemorative quarter-dollar advertised for sale at $4.98. It has a diameter of 24.3 mm, a thickness of 1.78 mm, and is completely covered with a layer of pure gold 0.214 µm thick. The volume of the plating is equal to the thickness of the layer multiplied by the area to which it is applied. The patterns on the faces of the coin and the grooves on its edge have a negligible effect on its area. Assume the price of gold is $14.1 per gram. (a) Find the cost of the gold added to the coin. (b) Does the cost of the gold significantly enhance the value of the coin? Yes or No Explain your answer.
The molar conductivity of Na1 ions in aqueous solution at 25°C has been determined to be =.01 × 10-2 (V cm)-1 mol-1L. Assume an electric field of 1.0 × 102 V cm-1 is applied to the solution. Calculate the mobility and the drift velocity of Na1 ions.
B A hair dryer is basically a duct of constant diameter in which a few layers of electric resistors are placed. A small fan pulls the air in and forces it through the resistors where it is heated. If the density of air is 1.15 kg/m3 at the inlet and 1.05 kg/m3 at the exit, determine the percent increase in the velocity of air as it flows through the hair dryer 1.05 kg/m³ The increase in velocity is Pin kg/m³ Check my work %6
You are an expert witness, having been hired by an attorney who is defending a wire manufacturing company in a lawsuit. The company is being sued by a firm that manufactures electronic measurement devices. The wire company provides copper wires with precision lengths and radii to be used in thermal measurement devices manufactured by the device firm. The device firm lost a major contract due to inaccuracy of their thermal measurement device. This firm is claiming that the precision of the wires provided by the wire company was not sufficient. You have inspected the wires in the laboratory and have found the lengths to be precise and the radii to be uniform, well within the specifications provided by the device firm. You report this information during the trial, and the legal team for the device firm looks frustrated. The lawyer confers with his client, jumps up, and says, "The wire company did not allow for thermal expansion of the wire! Thermal expansion could make a difference of…
The force on a satellite in the earth’s upper atmosphere depends on the mean free path of the molecules (a length), the density , the diameter of the body , and the molecular speed such that . Using the method of repeating variables, determine a non-dimensional functional relationship for the force. Hint: Use 3 repeating variables instead of 2 in order to simplify the problem by reducing the number of required pi terms needed.
B/ A journal/shaft of 60 mm diameter rotates at 3200 rpm. The journal is supported by a short hydrodynamic bearing of length L = D/3. The distance between the center of bearing and the center of shaft is 0.018 mm and the ratio of journal radius to the clearance is (). The radial load on the bearing is 9.3 kN. The lubricant is SAE 30, and the operating temperature of the lubricant in the bearing is 80°C. Calculate: (i) the minimum and maximum lubricant film thickness, (ii) the maximum lubricant pressure at bearing, and (iii) the friction power losses.
A 900-kg machine base is rolled along a concrete floor using a series of steel pipes with outside diameters of 100 mm. Knowing that the coefficient of rolling resistance is 0.5 mm between the pipes and the base and 1.25 mm between the pipes and the concrete floor, determine the magnitude of the force P required to slowly move the base along the floor.
A copper wire has a cross section of 2.5 mm^2 and a length of 2 meters. What is the electrical resistant at 20 degrees Celsius?
The temperature near the surface of the earth is 309 K. A xenon atom (atomic mass = 131.29 u) has a kinetic energy equal to the average translational kinetic energy and is moving straight up. If the atom does not collide with any other atoms or molecules, then how high up would it go before coming to rest? Assume that the acceleration due to gravity is constant during the ascent.
Copper wire has a resistivity o = 1.7 x 10-8 22m when at 20°C and it has a temperature coefficient a = 3.9 × 10-3 K-1. A solid cylinder of copper of length L = 85 cm and diameter D = 1.5 mm has one end held at T₁ = 15°C and the other end is held at T2 = 230°C. The temperature increases linearly between the two ends of the cylinder. T₁ dx R= L T₂ Part (a) Consider a thin slice of the copper cylinder of thickness dx that is located a distance x from the left end of the cylinder. Write an equation for the temperature of this slice in terms of the variables x, L, T1, and T2. Part (b) Determine the total resistance in milliohms.