Triangle abc is rotated 45° about point x, resulting in triangle efd. If ef = 4. 2 cm, df = 3. 6 cm, and de = 4. 5 cm, what is cb? 3. 3 cm 3. 6 cm 4. 2 cm 4. 5 cm.

What are the five categories of my plate

Ahands-free device may only be used if it can be activated or deactivated with a

Ateacher attaches a ball to a meter long string and whirls it around in a horizontal circle at constant speed. the teacher explains that the string is what makes the ball go in a circle. why is the string necessary? a) the string is needed to apply a torque to the ball. b) the string is needed to push on the ball to get it up to speed. c) circle motion requires an inertia which is provided by the string. d) circle motion requires a force to give it a centripetal acceleratio