An inductor of =6.95 H with negligible resistance is placed in series with a ℰ=12.5 V battery, a =3.00 Ω resistor, and a switch. The switch is closed at time =0 seconds. A square loop circuit containing a battery with E M F script E, an open switch S, and inductor of inductance L, and a resistor of resistance R, all connected in series. Calculate the initial current at =0 seconds. (=0 s)= 0 A Calculate the current as time approaches infinity. max= ___ A Calculate the current at a time of 1.85 s. (=1.85 s)= ___A Determine how long it takes for the current to reach half of its maximum. = ___s

Explain the difference laminar and turbulent flow. explain it with the shear stress and the velocity profiles.

What precautions should you take to prevent injuries when dealing with heavy loads?

Aloaded platform of total mass 500 kg is supported by a dashpot and by a set of springs of effective stiffness 72 kn/m. it is observed that when the platform is depressed through a distance x = 12.5 cm below its equilibrium position and then released without any initial velocity; it reaches its equilibrium position in the shortest possible time without overshoot. find the position and velocity of the loaded platform 0.10 sec. after its release. if a further load of 400 kg is added to the platform, find, i) the frequency of damped vibrations, and i) the amplitude of vibration after 2 complete oscillations, given that the initial amplitude is 15 cm.