An accelerometer is used to measure the amplitude of a simple sinusoidal oscillation with period of 0.027 seconds. if the output voltage from the accelerometer is 0.35 vpp , and the accelerometer calibration is 0.138 v/g, what is the displacement sensed by the accelerometer in mm? (hint: formulate an expression for sinusoidal motion like x(t) = x0 sin(ωt) and then recall how acceleration and displacement are related to find a similar expression for the measured acceleration.)

Consider a large isothermal enclosure that is maintained at a uniform temperature of 2000 k. calculate the emissive power of the radiation that emerges from a small aperture on the enclosure surface. what is the wavelength ? , below which 10% of the emission is concentrated? what is the wavelength ? 2 above which 10% of the emission is concentrated? determine the wavelength at which maximum spectral emissive power occurs. what is the irradiation incident on a small object placed inside the enclosure?