14. in an experiment, the independent variable affects the dependent variable is a special type of control should never be changed changes in response to the dependent variable

Affects the dependent variable.

Explanation:

A dependent variable is defined as the variable which is being tested during an experiment.

The dependent variable is the variable which is always dependent on the independent variable.

As in the experiments if the the value of independent variable then this change in independent variable will change the value of dependent variable.

For example: A scientist is recording the effect of light and dark on the moth by turning it off and on. In this case, the amount of light is independent variable and the moth's reaction is dependent variable. It means a change in the independent variable directly affect the dependent variable

the answer to this question is 60 n

when two balls of the different masses are dropped from equal height, they reach the ground at the same time .this is because they experience the same acceleration.

the acceleration is independent of mass.

thus when they are dropped they will always maintain the same velocity and travel the same distance (neglect air resistance of course) at the same time.