Suppose an experiment compares two groups that are very different from one another. How does this affect the validity of the evidence collected in that experiment?
A.
The evidence would be less valid.

B.
The evidence would be more valid.

C.
The validity of the evidence would not change.

i believe it is b. what was the cause of the big bang

hope this !

the electric field is a “force field” around a charged object that illustrates the direction the electric force would push an imaginary 

force is based upon mass and acceleration.the statement is not always true.

it can be explained from newton's second law of motion.

as per newton's second law of motion the rate of change of momentum is directly proportional to the applied force and takes place along the direction of force.

mathematically it can be written as -

                                              ⇒      

here   k is the proportionality constant whose value is 1.

                                                            [a is the acceleration=dv/dt]

hence we see that force not only depends on mass and acceleration but also on velocity and rate of change of mass. force f will depend on mass and acceleration only when mass is constant.

hence the statement that force is based upon mass and acceleration is false.