How would you answer c? I'm confused on the units as well.

Explanation:

The easiest way is to use Excel to graph the data and add a trendline.  Alternatively, you can use graph paper and a ruler and try to eyeball the best fit line.

The units of the axes are:

T = [s]

1/√k = [1/√(N/m)] = [√(m/N)] = [√(m / (kg m/s²))] = [s/√kg]

The equation for the period is T = (2π√m) (1/√k), so the slope of the line is 2π√m, and the units of the slope are √kg.  Using 4.30√kg as the slope, we can calculate the mass:

4.30√kg = 2π√m

0.684√kg = √m

m = 0.468 kg

If the actual mass is 0.500 kg, then the percent difference is:

|0.468 − 0.500| / (0.500) × 100% = 6.33%

depends on what you mean by "group." for order, it would be coleoptera (beetles). for class, it would be insecta (insects). for phylum, it would be the arthropoda (animals with jointed exoskeletons).

explanation:

here we know that ball will drop down by total distance 3.2 m

so here we know that

now using kinematics

now in the same time it will cover horizontal distance of 0.75 m

so speed of the ball will be