Jana is observing a young autistic boy in a preschool classroom. her job is to note each time the boy gets up from his chair without being told to do so. jana's method of noting this behavior is known as : shorthand tallying open coding reporting

The two required components for a generator are

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.

What is the coefficient of kinetic friction μk between the block and the tabletop?