You would use all of the following except for 3. descriptive categories because, that is a qualitative observation using descriptions and not a quantitative observation using numbers.<span />
Answer
Explanation:
Establish a Fire Prevention Plan – A fire prevention plan provides facilities with documentation outlining the employees responsible for identifying combustible materials, fire hazards and heat-producing equipment. It also outlines the procedures necessary to prevent potential emergencies.
The statement is a law because it accurately describes EVERY observation. No contradiction has ever been observed that would disprove it, or even cast doubt on it.
(Wellll ... at least, no contradiction that wasn't immediately and easily explainable, like dropping a helium balloon, or a sheet of paper in a high wind.)
Answer:
It will be 6400 N
Explanation:
The gravitational force between two objects is given by
where
G is the gravitational constant
m1, m2 are the masses of the two objects
r is the distance between the two objects
In this problem, the masses of the two objects double, so
Substituting into the formula, we find
so, the force will quadruple, and since the original force was
F = 1600 N
The new force will be
Answer:
The net force on the scooter is 95 N to the left.
Explanation:
Lizzie is pushing with 75 N of force to the left, so the force is a vector with 75N of magnitude and to the left.
Alex is helping with 20 N to the left, so the force is a vector with 20 N magnitude and to the left.
When we add vectors, vectors that point in the same direction add up and vectors that point in opposite directions are subtracted.
Hence, the net force is equal to:
F=75 N + 20 N=95 N
As both forces point to the left, the net force is also to the left.
