Question

Unless otherwise stated, enter your answers to at least three significant figures.

A student performed an experiment using the same set up as the one used in the lab "Pendulum." The sample data is provided in the table below.

Length, m	Period, s
0.35	1.39
0.75	1.99
0.55	1.69
0.65	1.87
0.45	1.59

1. What is the gravitational acceleration, g?  

b. What is the error, Δg?

c. g ± Δg = ( ) ( )

d. Was the experiment done on the Earth or another planet? (Use g_theo = 9.81 m/s² for Earth's theoretical gravitational acceleration. Assume experimental results found on Earth if the percent discrepancy between the correctly rounded value of g and g_theo is less than or equal to 15%.)

The experiment was done on Earth. or The experiment was done on another planet.    

e. Use the values for the length, period, and the correctly rounded value of g to calculate the mass of the planet. (Assume its radius to be 6.371 ✕ 10⁶ m.) Answer should be in kg.

Answer 1