Lets se
And


So

If spring constant is doubled mass must be doubled
Friction between the ball and the floor is stealing some of the kinetic energy of the ball, and turning it into heat.
Answer:
Explanation:
In Both Physics and Math
y=mx+b is plotted as straight line where
m=slope of line
b=intercept on Y-axis
whereas Equation of parabola is something like this

or

Math is a tool to solve Physics problems so equations are same in math and physics
Answer:
Weight = 3.92 N
Explanation:
Given:
Mass m = 0.4 kg
Acceleration due to gravity g = 9.8 m/s²
Find:
Weight
Computation:
Weight = Mass x Acceleration due to gravity
Weight = 0.4 x 9.8
Weight = 3.92 N
Yes I believe it would I think the answer is D