15.) A pendulum clock that works perfectly on Earth is taken to the Moon. Assume

ID: 1396915 • Letter: 1

Question

15.) A pendulum clock that works perfectly on Earth is taken to the Moon. Assume that the free-fall acceleration on the Moon is 1.63 m/s2.

(a) Does it run fast or slow there?

Options: (fast, slow, or neither, it runs the same as on Earth)

(b) If the clock is started at 12:00 midnight, what will it read after 13.5 h? (Enter the time to the nearest minute.)
( AM)

16.) The sinusoidal wave shown in the figure below is traveling in the positive x-direction and has a frequency of 27.1 Hz.

(a) Find the amplitude. (cm)

(b) Find the wavelength. (cm)

(c) Find the period. (s)

(d) Find the speed of the wave. (m/s)

15)

a) the time period of a clock pendulum is given as

T = 2pi*sqrt(L/g)

on the moon as g = gearth/6

hence , the time period of pendulum will slow down ,

and the clock will run slow.

let new time period is Tnew

Tnew / T = sqrt(g/gmoon)

Tnew /T = sqrt(9.8/1.63)

Tnew /T = 2.45

Now, for total time = 13.5 hours

time in clock at moon = 13.5/2.45 AM

time in clock at moon = 5.4 AM = 5 :28

the time in the clock at moon is 5:28 AM

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.