Calculate the period and frequency of a 3.500 m long pendulum at the following locations:
(a) the North Pole, where ag = 9.832 m/s2
(b) Chicago where, ag = 9.803 m/s2
(c) Jakarta, Indonesia, where ag = 9.782 m/s2

the working equation for the angular size is the product of the physical size and 360 degrees divided by the product of two pi and distance from earth. the minimum size would be 0.559 degrees while the maximum size would be 0.49 degrees. 

the answer is a. hope this .

answer: the metamorphic rocks are formed when they are exposed to high pressure and high temperatures. this happens when one of the earth's plates comes in contact with the other plate by traveling in opposite directions, straight into each other or slipping under one another. the friction that is caused by this activity results in   melting of rocks and when it cools they are known as metamorphic rocks. this process needs a controlled amount of pressure and temperature otherwise it may turn into magma.