1) TRUE/FALSE, an example of a quantitative observation is “That is a red doll.” 2) TRUE/FALSE, Potential energy is strongest at the top of a hill.

3) F= ?, m= 18 kg, a= 2 m/s2

help me pws

1) False

2) True

3) 36N

Explanation:

1) Quantitative observation is related to number of objects . But in that example , there isn't any number.

2) Potential energy depends on height. So potential energy increases when height increases.

3) F = m×a

In the question , m = 18 kg ; a = 2m/s^2

So, F = 18×2 = 36N

wavelength variability is the right one

iron would move it is magnetic there is a mag field around the current in the wire