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A steel rod of 20 cm in length with Young's modulus of 180 Gpa is used for a tensile test. If the rod is elongated by 5 mm, (i) what is the magnitude of the stress built up in the specimen? and (ii) What would be the approximate value of modulus of rigidity of this sample?"
a neutron passes two points 1.0 meter apart in 1.0 microsecond. calculate the neutrons energy in units of both joules j
If the range of the projectile is 2.39 m, the time-of-flight is T = 0.919 s, and air resistance is turned off, determine the following. What is the launch angle of the projectile
Computethe maximum height that a projectile can reach if it is launchedwith speed V o at angle thetarelative to the horizontal. how high can it get
a virtual image is formed by a convex mirror that has a 30 cm focal length. where must the object be placed if the
Alpha particles from a particular radioactive source have a speed of 1.65e7 m/s. How large a magnetic field is required to bend the path of the particles into a circle of 0.530 m radius
A resonant circuit in a radio receiver is tuned to a certain station when the inductor has a value of 0.240 mH and the capacitor has a value of 15.0 pF. Calculate the frequency of the radio station. What is the wavelength of the radiowaves emited ..
The system in Fig. 12-36 is in equilibrium. A concrete block of mass 225 kg hangs from the end of the uniform strut of mass 45.0 kg. For angles = 30.0° and θ = 45.0°, find (a) the tension T in the cable and the (b) horizontal and (c) vertical com..
A disk rotates with constant angular acceleration. The initial angular speed of the disk is 2rad/s. After the disk rotates through 20 radians, the angular speed is 3rad/s. What is the magnitude of the angular acceleration? What is the tangential acce..
A 10.2-g bullet is fired into a stationary block of wood having mass m = 4.92 kg. The bullet imbeds into the block. What was the original speed of the bullet
A cannonball is shot (from ground level) with an initial horizontal velocity of 41.0 m/s and an initial vertical velocity of 21.0 m/s. find the initial angle of the cannonball with respect to the ground
throw a tennis ball or baseball for distancea. standing still facing in the direction of the throw.b. standing with the
A 53.0 kg stunt pilot who has been diving her airplane vertically pulls out of the dive by changing her course to a circle in a vertical plane. What is the apparent weight of the pilot at the lowest point of the pullout
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