Recent content by charan1

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    2 hanging masses on Pully with friction time to reach floor?

    Second opinion please anyone! Just want to make sure! Dont have many tries left on the problem
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    2 hanging masses on Pully with friction time to reach floor?

    Homework Statement http://session.masteringphysics.com/problemAsset/1070551/3/12.P70.jpg The two blocks in the figure are connected by a massless rope that passes over a pulley. The pulley is 15 cm in diameter and has a mass of 2.6 kg. As the pulley turns, friction at the axle exerts a...
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    Nails going down the side of the roof

    well i got 1.144856m/s^2 after getting the net force along the roofs axis to be 2.862N and found the Vi to be 5.53m/s and that is also incorrect is it suppose to be negative? Im having a lot of trouble here...
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    Nails going down the side of the roof

    I did both with sin and cosin and they were both wrong need help someone please help!
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    Nails going down the side of the roof

    Homework Statement You and your friend Peter are putting new shingles on a roof pitched at 22 degree . You're sitting on the very top of the roof when Peter, who is at the edge of the roof directly below you, 5.0 m away, asks you for the box of nails. Rather than carry the 2.5 kg box of nails...
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    Elevator Problem Apparent weight and distance traveled

    Homework Statement Henry gets into an elevator on the 50th floor of a building and it begins moving at t=0s. The figure shows his apparent weight over the next 12 seconds. Part A: Is the elevator's initial direction up or down? Explain how you can tell. Part B: What is Henry's mass...
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    Projectile Motion pitching speed

    I don't follow. My part A is already correct.
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    Projectile Motion pitching speed

    Homework Statement A baseball player friend of yours wants to determine his pitching speed. You have him stand on a ledge and throw the ball horizontally from an elevation 4.00 m above the ground. The ball lands 30.0 m away. Part A: What is his pitching speed? Part B: As you think...
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    How do you take Velocity from Acceleration?

    For my HW question I have to take the velocity from an acceleration vs time graph at a certain time. How do I do this? I was sure that the velocity was the area underneath the curve but its not coming out right at all. Please help! Thanks
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    Solve for Earth and Mars Radius: Distance to the Horizon Formula

    Oh I see Thank you!
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    Solve for Earth and Mars Radius: Distance to the Horizon Formula

    But I thought you have to put a period after each vector variable?
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    Solve for Earth and Mars Radius: Distance to the Horizon Formula

    also the problem says I have to use meshgrid...I know there's a way to do this without doing that...
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    Solve for Earth and Mars Radius: Distance to the Horizon Formula

    Homework Statement The distance to the horizon increases as you climb a mountain: d=sqrt(2rh+h^2) d=distance to the horizon r=radius's h=height of hill solve for Earth's and Mar's radius Earths radius Feet: 20924640 Mars radius feet: 11132880 for heights from 0ft-10,000ft...
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    Heat Transfer Problem Conduction and Convection

    Thank you!
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    Heat Transfer Problem Conduction and Convection

    For Outside Air to outside tent Surface (Which is convection) so \DeltaT = tso - tao : 1500W=(10W/m2*K)(33m2)(tso - 5*C) tso=9.595*C For the heat transfer between the inner and outer surface of the tent (Which is Conduction): 1500W= -(.04W/m*k)(33m2)(9.595*C - tsi) / .005m tsi=15.27*C For Heat...