it is the future, and you have just landed on a distant planet called planet x. you release a ball of mass m = 0.100 kg from rest from a height of 10.0 m and measure that it takes 3.40 s for it to reach the ground. there is no air on planet x, so you can neglect air resistance. what is the magnitude of the gravitational force of planet x on the ball?

The smokey mountains have over 2,100 miles of rushing mountain streams and rivers that flow through the park. in each mile lives a diverse community of native fish, amphibians, insects, and larvae, some of which are found only in the southern appalachians. park managers and scientific researchers test many factors such as fish populations, the watersheds and water tests to determine a) too many lizards are present b) the water quality of the stream c) rainwater is running into local streams d) if visitors to the park are overstaying their welcome