Recent content by Dan350

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    Modern Physics question -- an atom ejecting a relativistic electron

    Homework Statement . An atom at rest can undergo radioactive decay, ejecting an electron at a maximum speed of 0.5c. If the atom in a particle accelerator is observed to produce an electron traveling at 0.75c, at least how fast must the atom itself have been moving? Homework Equations u0 x...
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    How Much Acrylic Acid and Sodium Hydroxide Are Needed for 5M Sodium Acrylate?

    Homework Statement From the balanced equation: C3H4O2 (liquid) + NaOH → C3H3NaO2 + H2O Calculate how much Acrylic Acid and Sodium Hydroxide would be needed to have a 5 M concentration in the monomer C3H3NaO2. Use as little Acrylic Acid and Sodium Hydroxide as possible. (Hint: use mL)[/B]...
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    How to Find the Limit of sin(3x²)/(8x) as x Approaches Zero?

    We factor out. then the limx-0 of 3x/8 and limx-0 of sin(3x^2)/3x^2 therefore limx-0 0*1 so limx-0f(x)= 0
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    How to Find the Limit of sin(3x²)/(8x) as x Approaches Zero?

    3x on both numerator and denominator? i would get 24x^2, but i can split the fraction right?
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    How to Find the Limit of sin(3x²)/(8x) as x Approaches Zero?

    1. what would be the limit?? without using the L'Hopital's rule lim_(x-0) (sin(3 x^2))/(8 x) the limit of sin(3x^2) divided by 8x as x approaches zero 2. Limits of trignometric functions 3. The Attempt at a Solution I tried factoring out the 1/8, but...
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    Two Blocks on an Incline(picture)

    1. Would you correct, revise my problem please? Two Blocks sit on a symmetric double slope. Rightmost block has twice the mass of the of the other block, and the angle that each side makes with the horizontal is the same. a) Suppose that there is no friction. and suppose that the slope...
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    What is the Total Momentum After Two People Push Each Other on Ice Skates?

    Momentum is initially zero,, what clues does that give you
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    Rotational Dynamics of a Motor-Driven Drum System

    I think I on the rigth track, would you revise it please 1. A motor is connected to a solid cylindrical drum with a radius of 0.6m and a mass of 52kg. A massless rope is attached to the drum and tied at the other end to a 38kg weight so the rope will wind onto the drum as it turns. The weigth...
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    Impulse Problem review, check out help

    Yess,, you were right on that one,thanks,, and finally x=ma/k right? just solving for it
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    Impulse Problem review, check out help

    Thank you, so for b) T/2= 2pi/√(k/m) right? And m for c). Will be m1+m2 right? Thanks
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    Impulse Problem review, check out help

    So what would be my limits of integration then? Or how you approach this problem? Thanks
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    Is it a scalar product? I'm kind of lost

    So,, if we add 45° to the 17° we get 62° for vector B, and 45° will be between vectors A & B,, am I right?
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