What is the acceleration of an object sliding down an incline a distance of 2.0m. Assume that it starts from rest, and it takes 5 seconds.

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

The percent efficiency of a machine can never be 100% (or greater), because in the real world some energy is always converted into a. heat b. work c. input force d. output force

Science and technology are interdependent. advances in one lead to advances in the other. give an example of this phenomenon.