The balloon was 30.65 meters above ground.
ANSWER: A
Answer:b) atoms
Explanation:which are in turn made up of protons, neutrons and electrons
Answer:
Explanation:
Given
Car speed decreases at a constant rate from 64 mi/h to 30 mi/h
in 3 sec


we know acceleration is given by 


negative indicates that it is stopping the car
Distance traveled



s=63.038 m