Acrane lowers a steel girder into place at a construction site. the girder moves with constant speed. consider the work wg done by gravity and the work wt done by the tension in the cable. which of the following is correct? 1. wg is positive and wt is positive. 2. wg is negative and wt is negative. 3. wg is positive and wt is negative. 4. wg and wt are both zero. 5. wg is negative and wt is positive.
Answers: 3
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The process of predicting values that extend beyond the range of data points is called absolute value extrapolation interpolation prediction for any given: )
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Physics, 22.06.2019 18:20, shongmadi77
Wavelength of 125 meters is moving at a speed of 10 m/s. what is it's frequency?
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Physics, 22.06.2019 23:20, jjhagan22
Consider each of the electric- and magnetic-field orientations given next. in each case, what is the direction of propagation of the wave? a)\vec ein the +xdirection,\vec bin the +ydirection. choose+ x direction- x direction+ y direction- y direction+ z direction- z direction b)\vec ein the -y direction,\vec bin the +x choose+ x direction- x direction+ y direction- y direction+ z direction- z direction c)\vec ein the +z direction,\vec bin the -x direction. choose+ x direction- x direction+ y direction- y direction+ z direction- z direction d)\vec ein the +y direction,\vec bin the -z direction. choose+ x direction- x direction+ y direction- y direction+ z direction- z direction
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Physics, 23.06.2019 00:30, sarahsteelman
Define the terms moral development and moral reasoning.
Answers: 1
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