Please help with this physics problem. I have struggled with it forhours now and cannot find the correct answer. It is due in an houronline!!! Thanks in advance. Here is the problem:

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I really need help with this problem, thanks so much in advance foryour help!

The physics professor can just be heard in the back row, 10 m away.The loudness of the professor's voice front row is 2m away, willbe:
a)100 dB
b)25 dB
c)15 dB
d)10 dB
e)5 dB

I really really need help with this problem....and ifanyonecan "dumb it down" or clearly explain the equations beingused thatwould really help me out.

here is the problem...\

A small 50g block slides down a frictionless surfacethroughheight h=20cm and then sticks to a uniform rod of mass 100gandlength 40cm. The rod pivots around point O (which is at thetop)through angle (theta) before momentarily stopping. Findtheta. Thereis a diagram of this problem in cramster. It is in the Fundementalsof Physics 8th edition by JearlWalker....Chapter 11...number66P.

Thank you so much in advance for putting the timeintoresearching this for me!!!!!

Ch 1 Q 62 from physics for scientists and engineers 8thedition

Demonstrate that for small angles

tan alpha = sin alpha = alpha = pi(alpha')/180 degrees
where alpha is in radians and alpha' is in degrees.

(The = actually is not equal but approximately, I just don't havethe approximate symbol)

Is this problem answer going to be an equation?? I'm not sure whatto do with it.

For part B is says use a calculator to find the largest angle fortan alpha may be approximated by alpha with an error less than10%

What does this mean!! help! Thanks so much in advance

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Please help with this physics problem. I have struggled with it forhours now and cannot find the correct answer. It is due in an houronline!!! Thanks in advance. Here is the problem:

http://i1220.photobucket.com/albums/dd456/ryanccrunner/HELP.jpg

Related textbook solutions

Physics: Principles with Applications

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Please help with this physics problem. I have struggled with it forhours now and cannot find the correct answer. It is due in an houronline!!! Thanks in advance. Here is the problem:http://i1220.photobucket.com/albums/dd456/ryanccrunner/HELP.jpg

Related textbook solutions

Physics: Principles with Applications

Related questions

Weekly leaderboard

Please help with this physics problem. I have struggled with it forhours now and cannot find the correct answer. It is due in an houronline!!! Thanks in advance. Here is the problem:

http://i1220.photobucket.com/albums/dd456/ryanccrunner/HELP.jpg