You are on a new planet, and are trying to use a simple pendulum to find the gravity experienced on this new planet. you find that a pendulum having a length of 35 cm has a period of 2 seconds. what is the acceleration due to gravity on this planet?

a. 13.82 m/s^2
b. 345.4 m/s^2
c. 3.45 m/s^2
d. 1.1 m/s^2

To solve this problem it is necessary to apply the concepts related to the Period based on the length of its rope and gravity, mathematically it can be expressed as

g = Gravity

L = Length

T = Period

Re-arrange to find the gravity we have

Our values are given as

Replacing we have

Therefore the correct answer is C.

the answer is b, have negligible mass

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.