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Design a small, single-cylinder, piston-type steam engine and boiler that can be used to power a toy vehicle, such as a train or a tractor.
Choose a convenient fuel such as alcohol, and design the boiler so that it can supply enough steam to your engine. Make sure the boiler has a pressure relief valve, and pay close attention to other safety considerations.
A certain light bulb has a tungsten filament with a resistance of 19 ohms when at 20 degrees celsius and 140 ohms when hot. Find the temperature of the hot filament
Find the ideal mechanical advantage and actual mechanical advantage of the plane. Also, Find the coefficient of friction between the box and the plane.
A closed organ pipe is 0.5m long. If the speed of sound is 340m/s , What is the pipe's fundamental frequency
The burning of gasoline in a car releases about 3 × 10^4 kcal/gal. If a car averages 43 km/gal when driving 90 km/h, which requires 20 hp, what is an efficiency of the engine under those conditions.
A 1500-kg car accelerates from 0 to 25 m/s in 7.0 s. What is the average power delivered by the engine
A 3.57 kg block is drawn at constant speed 4.06 m along a horizontal floor by a rope exerting a 7.68 N force at angle of 15 degree above the horizontal. Work out the coefficient of kinetic friction between block and floor.
A rectangular aperture is to be placed in the center of the beam so that the light falls perpendicularly on a wall 4.50 m away, the central maximum fills a rectangle 110 mm wide and 6 mm high. The dimensions are measured between the minima bracket..
Use the blackbody radiation law to estimate the wavelength of maximum intensity for the light from the sun's photoshere
The nucleus of the hydrogen atom has a radius of about 1.1x10^-15 The electron is at a distance of about 5.29 Ã- 10-11 m from the nucleus. compute the volume of the atom
A physics student playing with an air hockey table (a frictionlesssurface) finds that if she gives the puck a velocity of 3.85 m/salong the length (1.78 m) of the table at one end, What is the angle of inclination
the 2800-turn coil in a dc motor has an area per turn of 1.7 times 10-2 m2. the design for the motor specifies that the
The potential difference between a storm cloudand the ground is 100 million volts. what is the change of potential energy of the charge
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