Alyssa is making a paper dragon puppet as part of her family’s Chinese New Year celebration. She lays her tissue paper over the coordinate plane. Then she draws figure WXYZ for one of the dragon’s eyes. To make the other eye, she reflects figure WXYZ across the x-axis to form the image, figure W9X9Y9Z9 What are the coordinates of the vertices of figure W9X9Y9Z9? Picture It You can draw the image in the coordinate plane. In this case, the x-axis is the line of reflection. flip x y O 2 52225 2 5 W X Y X’ Y’ Z’ W’ Z line of reflection 25 22 Model It You can now identify the coordinates of the vertices of the image. Make a table to compare corresponding vertices. WXYZ W(23, 4) X(21, 4)Y(22, 1)Z(24, 3) W9X9Y9Z9 W9(23, 24) X9(21, 24) LESSON 2 Work with Single Rigid Transformations in the Coordinate Plane

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?

In general, how do thermosetting plastics compare to thermoplastics in mechanical and physical properties?

Tom is having a problem with his washing machine. he notices that the machine vibrates violently at a frequency of 1500 rpm due to an unknown rotating unbalance. the machine is mounted on 4 springs each having a stiffness of 10 kn/m. tom wishes to add an undamped vibration absorber attached by a spring under the machine the machine working frequency ranges between 800 rpm to 2000 rpm and its total mass while loaded is assumed to be 80 kg a) what should be the mass of the absorber added to the machine so that the natural frequency falls outside the working range? b) after a first trial of an absorber using a mass of 35 kg, the amplitude of the oscillation was found to be 10 cm. what is the value of the rotating unbalance? c) using me-3.5 kg.m, find the optimal absorber (by minimizing its mass). what would be the amplitude of the oscillation of the absorber?