B. The temperature of the water.
The independent variable is the variable that is changed to affect the dependent variable. In this instance, the temperature of the water is being changed to affect the amount of sugar that dissolves.
Iron nails are attracted to the magnet
I would say b as well. I’m sorry if it’s wrong
Answer:
a) The strength of gravity decreases if one moved away from Jupiter
b) The strength of gravity increases if one fell into Jupiter
Explanation:
The gravitational attraction is given by Newton law of gravitation as follows;
![Force \ (strength) \ of \ gravity = \dfrac{G \times M \times m}{R^2}](https://tex.z-dn.net/?f=Force%20%5C%20%28strength%29%20%5C%20of%20%5C%20gravity%20%3D%20%5Cdfrac%7BG%20%5Ctimes%20M%20%5Ctimes%20m%7D%7BR%5E2%7D)
Where;
G = The universal gravitational constant = 6.67408 × 10⁻¹¹ m³/(kg·s²)
M = The mass of Jupiter
m = The mass of the nearby body
R = The distance between the centers of Jupiter and the body
From the equation, we have that the gravitational strength varies inversely with the square of the separation distance between two bodies
Therefore, as one moves away, R increases, and the strength of gravity reduces
Similarly as the body falls into Jupiter, R, reduces the gravitational strength increases.