The acceleration due to gravity on Mars is about 3.7 m/s2. A pendulum on that planet has an object at the end with a mass of 1.5 kg and a period of 4.6 seconds. What is the length of the pendulum’s string? 1 .) 1.0m
2.) 2.0m
3.) 5.3m
4.) 6.3m

In a system, when potential energy decreases, then entropy also decreases. true false

Abird flies directly overhead from where you stand at an altitude of 300.0 m and at a speed horizontal to the ground of 20.0 m/s. the bird has a mass of 2.0 kg. the radius vector to the bird makes an angle \thetaθ with respect to the ground. the radius vector to the bird and its momentum vector lie in the xyxy-plane. what is the bird’s angular momentum about the point where you are standing?

Given the data calculated in parts a, b, c, and d, determine the initial rate for a reaction that starts with 0.85 m of reagent a and 0.70 m of reagents b and c?