At a given instant the bottom a of the ladder has an acceleration aa = 4 ft>s2 and velocity va = 6 ft>s, both acting to the left. determine the acceleration of the top of the ladder, b, and the ladder's angular acceleration at this same instant.

Apendulum has a mass of 1.5 kg and starts at a height of 0.4 m. if it is released from rest, how fast is it going when it reaches the lowest point of its path? acceleration due to gravity is g = 9.8 m/s2. a. 2.8 m/s b. 0 m/s c. 5.9 m/s d. 4.3 m/s

Acombination reaction is when two or more combine to form one product. a decomposition reaction is when a substance breaks down into two or more simpler substances in a chemical reaction.

Suppose a comet has an orbital period of 309.1 years around the sun. what is it’s average distance from the sun?