Data on sat scores of incoming freshmen in 1995 was released by a university for research purposes. the mean sat scores for the freshman year in 1995 was 1220 and with standard deviation of 80. determine (a) the percentage of freshmen who scored greater than 1300 on their sats. (assume normal distribution of the scores)

Acompressor receives the shaft work to decrease the pressure of the fluid. a)- true b)- false

Coiled springs ought to be very strong and stiff. si3n4 is a strong, stiff material. would you select this material for a spring? explain.

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?