When designing an experiment, it is important to make sure your hypothesis is

a) creative and observable.

b) testable and observable.

c) reliable and creative.

d) valid and testable.

The correct answer would be testable and observable.

Explanation:

Trust me, I took the exam.

dec 23, 2016 - a load of bricks weighing 680 n a distance of 10 m across a parking lot. if if the worker pushes the cart with a constant force of 209 n, what work= force x distance = 220 n x 10 m = 2200 n.m = 2200 j i don't know where the person got it from, but the initial part, work= force x distance me.