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Physics
The beam loaded at the mid point can be visualized as *
1.double cantilever fixed at the center
2.double cantilever loaded at both ends
3.double cantilever fixed at the center and loaded at both ends
4.double cantilever loaded at the center
1.double cantilever fixed at the center
2.double cantilever loaded at both ends
3.double cantilever fixed at the center and loaded at both ends
4.double cantilever loaded at the center
Physics
a radioactive isotope has a half life of 6 yrs. a sample of this isotope has a mass of 12mg. what’s the mass of the isotope after 18 yrs?
A straight wire of mass 300g and length 25m and current of 35A.It is suspended in midair by a uniform horizontal magnetic field B.What is the magnitude of the magnetic field?
3. Under-damping linear harmonic oscillator
A block of mass m is attached to a light spring with a spring constant k and located at its equilibrium position on a smooth horizontal surface. A damping force F(v) with a magnitude linearly proportional to speed v is also acting on the block.
a) Describe your system and sketch the free-body diagram (FBD) the block immediately after it is set in motion.
b) Write the equation of motion (EOM) for the particle and its general solutions.
c) Use relevant octave script to solve provided and plot the position and velocity of the block as a function of time.
d) Describe the state of motion of the particle based on the plots in part c).
A block of mass m is attached to a light spring with a spring constant k and located at its equilibrium position on a smooth horizontal surface. A damping force F(v) with a magnitude linearly proportional to speed v is also acting on the block.
a) Describe your system and sketch the free-body diagram (FBD) the block immediately after it is set in motion.
b) Write the equation of motion (EOM) for the particle and its general solutions.
c) Use relevant octave script to solve provided and plot the position and velocity of the block as a function of time.
d) Describe the state of motion of the particle based on the plots in part c).
Physics
Find the rms value, average value and form factor of resultant current in a circuit with simultaneous dc supply of 5A and ac supply with magnitude of 5A.
Upon seeing a red light, a 50. kg driver puts his entire weight on the brakes for a time period of 2.0 seconds. What is the magnitude of the impulse imparted by the driver onto the brakes?
Find enenrgy of photon whose wavelength is 3.8 x 10-7m
A steel pipeline conveying gas has an internal diameter of 1.2m and an external diameter of 1.25m. It is laid across the bed of a river, completely immersed in water and is anchored at intervals of 3m along its length. Determine the buoyancy force in newtons per metre run and the upward force in newtons on each anchorage. Density of steel = 7900 kg/m¬3, density of water is 1000 kg/m3.
Physics
What is the magnitude of the electric field at a field point 4.0 m from a point charge 10.0 nC
Physics
2 kg of gas occupying 0.7 m3 has an original temperature of 250C. It is heated at constant volume until its temperature becomes 1500C. Determine (1) Heat transferred (2) Work done during process (3) Change in internal energy (4) Change in enthalpy (5) Final pressure of gas. Take R = 0.29 kJ/kgK and Cv = 0.72 kJ/kg K.
