Problem related to youngs modulus of steel
Find the minimum diameter of an l = 19.3 m long steel wire that will stretch no more than 8.20 mm when a mass of 304 kg is hung on the lower end. (Hint: The Young's modulus of steel is 200.0 GPa.)
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A block of mass ‘m' is suspended from the ceiling of a stationary standing elevator through a spring of spring constant ‘k'. Suddenly the cable breaks and the elevator starts falling freely. Show that the block now executes a simple ha
A bicyclist starts from rest after traveling along a straight ath a distance of 20m reaches a speed of 30km/h. Find his acceleration if it is constant. Also, how long does it take to reach the speed of 30km/h?
A rigid tank contains air at 600 kP a absolute pressure and 18? C . What is the change in pressure if the temperature is increased to 40? C ?
Seven persons are staying at a hotel. The hotel has twenty-five floors, each with the same number of rooms. Each of the seven persons has been randomly assigned to one of the rooms in the hotel. What is the probability that at least two people hav
Gold foil is 0.08 mm thick and 670mm^2 in area. (a) it is cubic with a=0.4076nm. How many unit cells are there in the foil? (b) what is the mass of each unit cell if the density is 19.32 Mg/m^3?
The acceleration of a particle as it moves along a straight line is given by a = (2t-1)m/s^2, where t is in seconds. If s = 1m and v = 2m/s when t = 0s, determine the particle's velocity (v) and position (s) when t = 6s.
A long straight wire carries a current of 46 A. An electron, traveling at 1.0 x 107 m/s, is 6.0 cm from the wire. What is the magnitude of the magnetic force on the electron if the electron velocity is directed as follows?
A vehicle traveling at 30 mph enters a 600 ft radius curve and begins to increase its speed at a rate of 10 ft/s^2. Find the total acceleration of this vehicle 3 seconds after it enters the curve.
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