What is the frequency of motion of a 0.50 m long pendulum?

0.32 Hz

0.70 Hz

1.4 Hz

0.81 Hz

im not sure on this one

jjennylove Dec 3, 2019

#2**+1 **

Period = 2 pi sqrt(l/g) = 2 pi sqrt (.5/9.81) = 1.419 sec

Frequency = 1/period = 1/1.419 = .70 hz

ElectricPavlov Dec 3, 2019

#3**+1 **

EP's answer is correct....

See this, Jenny : https://www.answers.com/Q/What_is_the_frequency_of_a_pendulum

CPhill Dec 3, 2019

#4**+1 **

hmm, im not quite sure then but i as well thought it was 0.70 hz

what about this one?

A 1.0 kg weight suspended from a spring is pulled to 0.25 m below its equilibrium point.

If the spring has a spring constant (k) of 50.0 N/m , at what rate will the mass accelerate when it is released?

200 m/s2

12.5 m/s2

6.5 m/s2

2.7 m/s2

2.7 ?

jjennylove
Dec 3, 2019