Image #3 good luck!!!!!!!!!!!
Answer:
A
Explanation:
The answer is A because proton number is the same as atomic number
Fluid Friction exists when it is acted upon an object when in fluid.
Answer:
Explanation:
A ball is thrown in forward direction by a person who is riding on the roof of the moving train.
-->If you neglected the air drag and relative to the ground, then the velocity of the ball is equal to the sum of the velocities of ball and the train.
-->Hence, the ball is moving faster.
-(b) Relative to the freight car, the ball moves at the same speed irrespective of train
