Need plz im failing. combustion occurs when oxidation reactions are very slow oxidation reactions are so fast the substance catches fire oxygen is removed from another substance machines use chemical energy to do work

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

Looking at this barometer, is the air pressure high or low? what type of weather would you expect? high, bad low, bad high, good low, good

What happens when you slowly pulled the carboard?