You want to create standing  waves in a string of length 1.50 m, by attaching different masses on the end of the string passing over the  pulley. You then set frequency to oscillate at 60.0 Hz. Assuming the linear mass density of  the string is 3.5 × 10−4/, what masses should you hang on the string to produce standing waves of  the first, second and fifth harmonics?

Steam enters an adiabatic diffuser at 150 kpa and 1208c with a velocity of 550 m/s. determine the minimum velocity that the steam can have at the outlet when the outlet pressure is 300 kpa.

Waves that cause the most damage during an earthquake are a. surface waves c. s waves b. p waves d. ocean waves

Unpolarized light falls on two polarizer sheets whose transmission axes are at right angles. a third polarizer is placed between the first two so that its axis makes a 52-degree angle with the axis of the first polarizer. a) what fraction of the incident light intensity is transmitted through the first polaroid? b) what fraction of the incident light intensity is transmitted through the second polaroid? c) what is the angle of polarization of the light that enters the third polaroid? d) what fraction of the incident light intensity is transmitted through the third polaroid. e) what happens if the middle polaroid is removed?