Answer:

Explanation:
Earth ⇒ 9.8 m/s²
Mercury ⇒ 3.7 m/s²
Neptune ⇒ 11.2 m/s²
Uranus ⇒ 8.9 m/s²


The weight of a person can differ on different planets, but the mass stays the same. The greater the acceleration due to gravity, the greater the weight.
Arranging the planets in increasing order based on a person’s weight on the planet:
Mercury, Uranus, Earth, Neptune
B. Wagon B will accelerate at twice the rate as Wagon A. hope this helps!
Answer:652.05 J
Explanation:
Given
Weight of lifter 
vertical distance move 
Work done in lifting the weight is equal change in Potential Energy of weight
Change in Potential Energy 

therefore work done is equal to
The number of heat units needed to raise the temperature of a body by one degree.
This statement is true. The point located at the geometric center of an object is indeed called the object's center of gravity. Center of gravity is the average of the weight of a resultant of the parallel forces, including all the particles that is passing through its body.