A pendulum has a length of 0.7 m and a mass of 0.5 kg, and is pulled back 30 degrees before releasing it. a) calculate the period of this pendulum on Earth.

b) calculate the period of this pendulum on Saturn, where g= 11.08 m/s squared

c) If you increase the mass of this pendulum to 1.2 kg, what will it’s period be on Earth?

d) If you pull this pendulum back to 40 degrees before releasing it, what will it’s period be on Earth?

How much force was applied to an object if was moved 2 meters and the work done on the object was 8 joules? a. 0.25 n b. 4 n c. 6 n d. 16 n

Imagine you are standing in the antarctic during the southern hemisphere summer. the sky is clear and blue. there are no clouds in the sky. your shadow is cast on the icy ground. what is the color of the shadow?

Awater slide of length l has a vertical drop of h. abby's mass is m. an average friction force of magnitude f opposes her motion. she starts down the slide at initial speed vi. use work-energy ideas to develop an expression for her speed at the bottom of the slide. then evaluate your result using unit analysis and limiting case analysis. express your answer in terms of the variables h, m, l, vi, f and appropriate constants. vf v f