Answer is A, the mass and radius of the planet.
The law of universal gravitation states that gravitational force (weight) is equal to G(m1+m2)/r, and G is a constant number. m is mass and r is radius, so the answer is A.
Answer:
they have same number of electrons
Answer:
test or trial
Explanation:
When somone is doing an expirement they usually conduct tests to see if their hypothesis was valid. They could so small trials like this,
Example:
Problem: Can people taste the difference between Coca Cola and Pepsi?
Trials:
1. Yes
2. Yes
3. No
4. Yes
5. Yes
6. No
7. No
8. Yes
9. Yes
10. Yes
Based on the majority, the solution to our problem is yes, most people can taste the difference between Coca Cola and Pepsi.