What would most likely occur if an experimental design specifies only a test group? a)the experiment will lack a control. b)the experiment will lack a purpose. c)the experiment will not be repeatable. d)the experiment will not have variables.

The correct answer would be option A.

Any experimental design two types of groups; control and experimental groups.

Thus, the given experimental design would lack the control group.

The control group refers to the group in which does not receive variables being tested.

This group is used to compare the results observed in the experimental group.

the correct answer is(the type of energy described here is potential energy.)

explanation: now if the person holding the bow and arrow has now let go. the arrow shoots forward toward its target. the   type of energy then becomes

this is a good question! i'll do some research and come back when i have the answer!