Recent content by shaka23h

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    Electric Potential: Find V between 6.17 nC & -4.32 nC Charges

    So do I just use V = Kq/r and solve for 6.17 and -4.32 making sure that I keep the signs? and then add these up? The question asked for the midway between charges how does this come into effect? is my r value 1/2 of 29.1 cm? Let me know
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    Electric Potential: Find V between 6.17 nC & -4.32 nC Charges

    Homework Statement Two pont charges of magnitude 6.17 nC and -4.32 nC are separated by 29.1 cm. The acceleration of gravity is 9.8 m/s^2. the Coulomb constant is 8.98755 x 10 ^9 N m^2/C^2. What is the electric potential at a point midway between the charges? Answer in units of V...
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    Sound Intensity and sound proofing

    anyone have any suggestions?
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    Sound Intensity and sound proofing

    A recording engineer works in a soundproofed room that is 36.2 dB quieter than the outside. If the sound intensity in the room is 2.45 x 10-10 W/m2, what is the intensity outside? It seems so ez yet I'm getting the wrong answer ok so here is what I am able to do the difference of 36.2dB...
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    Calculating Distance from Earthquake Using P and S Waves

    When an earthquake occurs, two types of sound waves are generated and travel through the earth. The primary, or P, wave has a speed of about 8.0 km/s and the secondary, or S, wave has a speed of about 4.5 km/s. A seismograph, located some distance away, records the arrival of the P wave and...
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    Solve Heat Conduction Problem: Oven Energy Use & Cost

    The temperature in an electric oven is 160 °C. The temperature at the outer surface in the kitchen is 38.6 °C. The oven (surface area = 1.44 m2) is insulated with material that has a thickness of 0.0249 m and a thermal conductivity of 0.0405 J/(s m C°). (a) How much energy is used to operate the...
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    How Do You Calculate Wall Forces in Beam Equilibrium Problems?

    you guys//lady are awsome :) Thanks a lot
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    How Do You Calculate Wall Forces in Beam Equilibrium Problems?

    well at tutoring today the guy didn't explain it too sell. But I know there is the weight of the ladder and the weight of the box going down oh and the tension force of course of the top string. which I solved to equal 2202 N I can't attach a picture of my hand drawing cause I don't have a...
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    How Do You Calculate Wall Forces in Beam Equilibrium Problems?

    A 1090-N uniform beam is attached to a vertical wall at one end and is supported by a cable at the other end. A 1960-N crate hangs from the far end of the beam. Using the data shown in the figure, find (a) the magnitude of the tension in the wire and the magnitudes of the (b) horizontal and (c)...
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    Rotational Motion around a Fixed Axis

    hmm not exactly, I guess I'll read over the chapter again and see.
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    Rotational Motion around a Fixed Axis

    Hi, I'm really confused about these 2 problems to the extent that I have no idea where to start. Any kind of suggestions and hints would be really appreciated. Thanks A 1090-N uniform beam is attached to a vertical wall at one end and is supported by a cable at the other end. A...
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    Conservation of Angular Momentum of a Disk

    ok am I suppose to include the inertia of the disc by adding the I0 to (.36 x .48 ^2). I'm still not getting the answer nvm I got it it was just an error in calculation. you are awsome DOC :) thx a lot
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    Conservation of Angular Momentum of a Disk

    A solid disk rotates at an angular velocity of 0.094 rad/s with respect to an axis perpendicular to the disk at its center. The moment of inertia of the disk is 0.12 kg·m2. From above, sand is dropped straight down onto this rotating disk, so that a thin uniform ring of sand is formed at a...
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    Solving Compression Problem: Water Skier & Tow Rope

    oh ic ic. That explains it so much better. Thank you so much.
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