José and Laurel measured the length of a stick's shadow during the day. Without knowing the length of the stick, which of their measurements would you ask José and Laurel to examine more closely? A. 50 cm at 6:00 a. m. B. 75 cm at 12:30 p. m. C. 42 cm at 5:45 p. m. D. 55 cm at 7:15 p. m. dont speak spanish answer with english plz???

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

The uniform slender bar rests on a smooth horizon- tal surface when a force f is applied normal to the bar at point a. point a is observed to have an initial acceleration aa of 20 m/s2, and the bar has a corre- sponding angular acceleration of 18 rad /s2. deter- mine the distance b.

The illuminance of a surface varies inversely with the square of its distance from the light source. if the illuminance of a surface is 120 lumens per square meter when its distance from a certain light source is 6 meters, by how many meters should the distance of the surface from the source be increased to reduce its illuminance to 30 lumens per square meter?