The man is holding the suitcase at the same height above the surface of earth. So the gravitation potential energy remains the same.
<span>work done is force * displacement = weight * 0 = 0</span>
Answer:
HCl, Option A.
Explanation:
Hcl is a strong acid, NaOH is a strong base, the saliva has a relatively neutral pH and blood is slightly acidic.
Answer:
Jupiter
Characteristics of a Dwarf Planet
One of Sir Isaac Newton's accomplishments established that the gravitational force between two bodies is proportional to their masses. All other things being equal, the planet with the strongest pull is the one with the largest mass, which is Jupiter.
Mechanical advantage (MA = slope/height)
here length of slope = 9Hheight = H so mechanical advantage = ---- 9H/H= 9
I would google "Earth Science textbook free online" and see what you get.
Good luck!
Hope this helps~!
~{Oh Mrs.Believer}
