(adsbygoogle = window.adsbygoogle || []).push({}); Need some Homework help PLEASE

1. The problem statement, all variables and given/known data(problem one i need help with)

A light string of mass 10.0 g and length L = 3.00 m has its ends tied to two walls that are separated by the distance D = 1.90 m. Two masses, each of mass m = 1.95 kg, are suspended from the string as in Figure P13.64. If a wave pulse is sent from point A, how long does it take to travel to point B?

Diagram is attached

I think you apply newtons second law for equilibrim applied to the block and mass per unit length of the string is =M/L

Sqaure root of (1.95kg)(9.8m/s^2)/(10g)(1.90m)=62.6m/s

t=d/v=1.90m/62.6m/s

Problem 2 i need help with.

A stone is dropped from rest into a well. The sound of the splash is heard exactly 2.20 s later. Find the depth of the well if the air temperature is 12.0°C.

I have completed the rest of my webassign but i am completely lost on these two problems. I have pages of notes trying to solve the first problem but and totally lost on the second. Thanks so much.

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# Homework Help: Need some Homework PLEASE

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