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a beam has a rectangular section of 40mm wide and 120mm deep and a span of 1m. The beam is simply supported, carries a concentrated load of 10kn at mid-span and is subjected to an axial compressive force of 50kn applied on the centroid of the cross section. Calculate the maximum resultant stress in the beam and plot the stress distribution diagram for this section
A 2.5-kg block slides down a 25° inclined plane with constant acceleration. The block starts from rest at the top. At the bottom, its velocity is 0.65 m/s. The incline is 1.6 m long. What is the acceleration of the block?
The projection lens in a certain slide projector is a single thin lens. A slide 23.9 mm high is to be projected so that its image fills a screen 1.74 m high. The slide-to-screen distance is 2.93 m. Determine the focal length of the projection lens..
A steel wire of length 1.97m with circular cross section must stretch no more than 0.270cm, What minimum diameter dmin is required for the wire
For this problem, you will calculate the activity of a radioactive substance at different times. Determine the initial activity in curies
A student doing an experiment pours 0.160kg of heated copper shot into a 0.355-kg aluminum calorimeter cup containing 0.240kg of water. find the initial temperature of the shot
an object of mass 1.00kg travels at 5.0m/s and enters a region of ice where the coefficient of friction is 0.10. determine the distance traveled before coming to a hault
A long, straight wire carries a current of 48 A. The magnetic field produced by this current at a certain point is 9.5 x 10-5 T. How far is the point from the wire
A planet of mass m = 1.35 × 10^24 kg is orbiting in a circular path a star of mass M = 7.35 × 10^29 kg. What is the orbital period (in earth days) of the planet Tplanet
The length of a simple pendulum is .79 m and the mass at the end of the spring is .24 kg. what is the speed of the mass as it passes through the lowest point of the swing
Two motorcycles are traveling due east with different velocities. However, four seconds later, they have the same velocity. During this four-second interval, Which motorcycle was moving faster
A flat uniform circular disk (radius = 4.91 meter, mass = 400 kilogram) is initially stationary. Obtain the resulting angular speed of the disk
A light beam traveling through air, enters a slab with n= 2.50 at a 45º angle with respect to the normal, At what angle to the normal does the ray leave the slab
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