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A solid circular steel rod 6mm in diameter and 500mm long is rigidly fastened to the end of a square brass bar 25mm on a side and 400mm long, the geometric axes of the bars lying along the same line. An axial tensile force of 5kN is applied at each of the extreme ends. Determine the total elongation of the assembly. For steel, E = 200GPa, and for brass, E = 90GPa. Express the answer in millimeters.
A 0.340-kg tennis racket strikes a 57.0-g tennis ball. The tennis ball has an average acceleration of 95.0 m/s2 during the collision. Find the magnitude of deceleration of the racket
Two identical nickel balls are two meters apart from each other. The volume of the balls is 1 cm3. Find the magnitude of gravitational force between two nickel balls
A composite slab with dimensions d1 = 9.1 cm, d2 = 2.30 cm, and d3 = 13.5 cm. What are the coordinates of the center of mass of the slab
Two identical small insulating balls are suspended by separate0.211 m threads that are attached to a common point on the ceiling. Each ball has a mass of 8.06E-4 kg. Initially the balls areuncharged and hang straight down.
Find the speed at which Superman (mass=83.0 kg) mustfly into a train (mass = 16756 kg) traveling at 100.0 km/hr to stop it. Running into the train at that speed would severely damage both train and passengers.
A skier travels down the trail. The slope is inclined at an angle of 22 degree and the coefficient of kinetic friction for the skier's shoes-ice surface is 0.2. Compute what the skier acceleration down the hill
Two nanowires are separated by 1.0 nm as measured by STM. Inside the wires the potential energy is zero, Estimate the probability that the electron passes from one wire to the other
A 782 kg car is pushed at a constant positive velocity in a flat parking lot whose coefficient of friction is 0.18. If the car is pushed for 23 meters, what work is done by the forces acting on the object
A laser beam with wavelength ? = 6328 Å is incident normal to a single slit of unknown width, Find the width of the slit
A 0.05 kg bullet traveling at 600 m/s hits a 7.4 kg block of wood and stays in the wood. What is the velocity (speed) of the wood block immediately after the bullet hits it
A closely wound rectangular coil of 95.0 turns has dimensions of 21.0cm by 48.0cm. What is the average emf induced in the coil
Light of wavelength = 580 nm passes through a pair of slits that are 11 µm wide and 215 µm apart. How many bright interference fringes are there in the central diffraction maximum
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