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Question: A voltage v = 5d(t) nV (where d(t) is the unit impulse) is supplied to the rotary capacitive MEMS actuator of Figure 10.50, which operates in air. Find and plot the time response of the mobile armature knowing its moment of inertia is J = 10-18 kg-m2 , the viscous damping coefficient (not symbolized in Figure) is c = 30 N-m-s, and the spiral spring stiffness is k = 2 N-m. Known also are the fixed gap g = 4 nm and the radius R = 220 nm.
You would like to store 8.1 J of energy in the magnetic fieldof a solenoid. The solenoid has 530 circular turns ofdiameter 7.2 cm distributed uniformly along its 28 cmlength. How much current is needed?
The effective vibrational force constant of CN is 1.017 x 104 eV/nm2. Relative to the ground state, find the energy of the second excited vibrational state.
Yellow light of vacuum wavelength 589 nm travels at 1.942 x108 m/s through quartz. Quartz is a nonmagneticdielectric. Calculate its permittivity. Find the electric field amplitude of a linearly-polarizedelectromagnetic wave of intensity 12.0 GW/m2..
A broad beam of light of wavelength 485nm is incident at 90° on a thin, wedge-shaped film with index of refraction 1.50. An observer intercepting the light transmitted by the film sees 17 bright and 16 dark fringes along the length of the film. By..
The systolic pressure is 0.158 atm and the diadtolic pressure is 0.150 atm in the heart. If the volume pumped in one heartbeat is 75cm3 calculate the work done in a heartbeat. Assume a simple dependence of pressure in a ventricle.
what must the bandwidth be for a radar system which uses pulse widths of .1 us? if this radar is used for determining
a pendulum consists of a 1.6-kg bob attached to a light 3.0-m-long string. while hanging at rest with the string
A player kicks a soccer ball towards the goalkeeper, but at an angle of 37 degree to the horizontal and with an initial speed of 14.7m/s The goalkeeper stands 26 m from the kicker. Where will the ball land relative to the goalkeeper?
a singly charged ion of unknown mass moves in a circle of radius 14.5 cm in a magnetic field of 1.40 t. the ion was
A 5.4 m-long rod of (constant diameter 4.6 mm) is made of 2.0 m of copper and the remainder of aluminum, What is the temperature at the interface between the copper and aluminum
A girl pulls a sled along a level dirt road by means of a rap attached to the front of the sled. The mass of the sled is 40 kg. the coefficient of kinetic friction is uk=0.60, and the angle between the rope and the road is 30 degrees. What pull mu..
A circular loop of wire of radius 0.50 m is in a uniform magnetic field of 0.30 T. The current in the loop is 2.0 A. What is the magnetic torque when the plane of the loop is perpendicular to the magnetic field
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