Pls could someone help me with these questions. 1a. A simple pendulum of length
ID: 1726190 • Letter: P
Question
Pls could someone help me with these questions.1a. A simple pendulum of length L and mass M has frequency f. Toincrease its frequency to 2f: decrease itslength to L/4
decrease itslength to L/2
increase itslength to 4L
increase itslength to 2L
decrease its massto < M/4 1b. Two identical but separate strings, with the same tension,carry sinusoidal waves with the same frequency. Wave A has aamplitude that is twice that of wave B and transmits energy at arate that is _______ that of wave B. fourtimes
eighttimes
twice
one-fourth
half
Explanation / Answer
1a) We have the frequency of the simple pendulum is f = (1/(2L))(T/m) From the above equation frequency of the pendulum isincreased to 2f then the decrease its length to L/2. 1b) WE have the formula for the energy of the simple pendulumis E = (1/2)mA22 From the equation EA = 4 EB four times