Recent content by B2k

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    Probability Questions Before College: Tablets & Taste Test

    well for the second part its obvious that people can tell a difference if 6 can identify it.. that's just a straightforward probability q that can be done with the formula p=a/s.. i can do the math for that.. just how to phrase it.. the first part, I am a bit stumped.. the answers i get seem...
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    Probability Questions Before College: Tablets & Taste Test

    jus before i go back to college trying to get a bit of revision done.. however i seem to have a block on this probability question... a company makes tablets.. 94% would pass a disintegration test.. an inspector selects 6 at random at least 4 would have to pass, what is the proability of...
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    Forces on a Spring: Calculate Force and Energy

    the first part i can do no problem.. the second part i keep getting answers that look way out.. formula i had was t=2(pie)/w which i think was ok.. but w was a problem as i couldn't get a correct answer when i used a=w2s
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    Forces on a Spring: Calculate Force and Energy

    Hi, Ok so here's my problem... A force F causes a spring with spring constant of 150N/m to compress by 2 cm. Determine the force exerted by and the potential energy of the spring (obv. p=mgh) before and after compression. Determine the frequency period of the oscillation of a 100g mass...