A mass on a string of unknown length oscillates as a pendulum with a period of 2.2s . Parts A to D are independent questions, each referring to the initial situation.
Part A What is the period if the mass is doubled? Express your answer to two significant figures and include the appropriate units.
Part B What is the period if the string length is doubled? Express your answer to two significant figures and include the appropriate units.
Part C What is the period if the string length is halved? Express your answer to two significant figures and include the appropriate units.
Part D What is the period if the amplitude is doubled? Express your answer to two significant figures and include the appropriate units.