Passive transport is when molecules travel from HIGHER concentration to LOWER concentration through a concentration gradient.
Active transport is the OPPOSITE. So it travels from LOWER to HIGHER concentration through a concentration gradient.
There are also other differences, but this is the main difference.
Adding oil to the moving parts of machines can do that because it makes it smoother and takes the rust off of it.
Answer:
F = 29.9 N
Explanation:
It is given that, The Sun exerts a gravitational force of 29.9 N on a rock that's located in a river bed here on Earth. We need to find the gravitational force the rock exert on the Sun. It is a case of Newton's third law of motion which states that the force acting from one object to another is equal to the force acing from second object to the first object and the two forces must be in opposite direction. Hence, the gravitational force the rock exert on the Sun is same i.e. 29.9 N.
Answer:
It is called force.
Explanation:
A push or pull exerted on an object. Measured in Newtons. Friction & gravity are forces. There are balanced and unbalanced forces.