Answer: C
Explanation:
The forces at play, are gravity (which is pointing down[g]) and air resistance(which is pointing up [R]). The net force is [F] is
F = g + (-R) if we choose down as +tive and up as -tive.
Since the skydiver IS falling, it means g is bigger than F, since gi si responsible for pulling down, and this then confirms that the net force will then be pointing downwards.
When acid reacts with water, the hydroxide ion is formed I think it is true.
Answer:
in science and engineering , the weight of an object is the force acting on the object due to gravity.
