I would definitely think its B....
Answer:
A north magnet attracts a south magnet
Explanation:
The opposite polar magnetic field will attract each other while the same polar magnetic fields will repel each other.
Answer:
an apple that fell down from a tree
Explanation:
he wondered what force was acting as the apple fell , he later termed it as a downward force acting on the earth called <em>gravity</em>.
You need to write the question for the solution.
Add the question then only can get the answer
Assuming there is no force of friction...
F = ma
F = (1300kg)(1.5m/s^2)
F = 1950N
Just multiply mass by acceleration.
1300 x 1.5 = 1950N.
