Who was the first people to suggest that matter is mad up of particles that cannot be divided

What object a collides with object b and bounces back its final momentum is?

Specific heat refers to the amount of heat required to change 1 gram of a substance by degree(s) celsius

Astudent weighing 700 n climbs at constant speed to the top of an 8 m vertical rope in 10 s. the average power expended by the student to overcome gravity is most nearly