5. the drawing shows a negative charge ( q 1 ) and a positive charge ( q 2 ) fixed to a circle. at the center of the circle they produce a net electric field that is directed along the horizontal axis. determine the ratio q 1 / q 2 of the charges if α=27.0° and β=64.0°.

An input force of 7 n is applied to a machine with a mechanical advantage of 1.75. what is the maximum the machine could lift? 12.25 n7n7.25 n26.2 n

Acompound machine is also called a machine. a. force b. simple c. complex d. directional

The temperature at a point (x, y) is t(x, y), measured in degrees celsius. a bug crawls so that its position after t seconds is given by x = 6 + t , y = 8 + 1 3 t, where x and y are measured in centimeters. the temperature function satisfies tx(3, 9) = 5 and ty(3, 9) = 4. how fast is the temperature rising on the bug's path after 3 seconds? (round your answer to two decimal places.)