Recent content by hyen84

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    Determine the speed of the stone

    Need Help ASAP! hey can some1 help me with these 2 physics questions..really need it...it's my last homework assigment and i have trouble with this 2...please help it's due tomorrow morning...show what me to do..thankssssssssss 1. A stone is tied to a string (length = 1.27 m) and whirled in...
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    Coefficient of static friction of car

    thanks for the help..but for number 2 i got an answer of 34143.15...i don't know if that's right or not, i think is wrong... but i followed your equation...so i don't know... for number 1 i still don't understand...
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    Coefficient of static friction of car

    Please help... I need help with this 2 physics questions...thanks in advance.. 1. A car can negotiate an unbanked curve safely at a certain maximum speed when the coefficient of static friction between the tires and the ground is 0.946. At what angle should the same curve be banked for the...
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    How Do You Calculate Satellite Orbits and Friction Factors in Physics?

    so...m2 is 1.57 x 107 m..then what's m1..mass of Earth is that supposed to be given in the text too...and number 2..> 1.083..what's that...sorry to ask many questions..but i just don't know...oh my goodness I'm going crazy..with this physics stuff...
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    How Do You Calculate Satellite Orbits and Friction Factors in Physics?

    Couples of physics questions... i have couples of physics question..can someone help..thanks in advance... 1.Synchronous communications satellites are placed in a circular orbit that is 1.57 x 107 m above the surface of the earth. What is the magnitude of the acceleration due to gravity at...
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    Calculating Force Components and Impact Force for Flight Recorder Testing

    hey thanks for the help...i really appreciate it..but for some reason i used what you said and i got the answer wrong...i don't know where i did wrong..can someone double check for me..thanksssssssssssss
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    Calculating Force Components and Impact Force for Flight Recorder Testing

    Need help With This... i don't know which formulas to use to find the answer..please help...thanks in advance... 1.A force vector has a magnitude of 671 N and a direction of 65.8° north of east. Determine the magnitude of the components of the force that (a) point along the north-south line...
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    Solving for Time and Velocity in Hot-Air Balloon and Ski Jumping Scenarios

    Please guys don't argue..i don't want it to be b/c of me asking for help that turn into an argument...if the program work for Tom McCurdy, that's great..but i like to do things hand on..so..i'm doing it using formulas... thanks guys for your help...
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    Solving for Time and Velocity in Hot-Air Balloon and Ski Jumping Scenarios

    More Physics Help please... i need help with this 2 physics question..can someone help me please...thank you very much...which equation should i use... 1. A hot-air balloon is rising straight up with a speed of 5.00 m/s. A ballast bag is released from rest relative to the balloon when it is...
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    What is the skier's launch speed?

    hey thanks alot..so the number 1 i just use that euqation to find the speed..so i don't need the 63 degree or anything like that..and for number 2..i use the same equation as #1 to find D right...but before i do that i need to find Vy right and that's using the tangent equation right??
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    What is the skier's launch speed?

    Please Help... Can Someone please help me with these 2 physics question..i don't know waht equation to use ...can someone please tell me what equation to use..thanks alot..appreciate it. 1.The 1994 Winter Olympics included the aerials competition in skiing. In this event skiers speed down a...
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    How Do You Calculate Time and Speed in These Physics Problems?

    Physics questions... 1.) From her bedroom window a girl drops a water-filled balloon to the ground, 5.53 m below. If the balloon is released from rest, how long is it in the air? ** they didn't give me any velocity, so i don't know waht to do ** 2.) Two arrows are shot vertically upward...
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    How Do I Solve These Physics Vector Problems?

    Can someone help me with this... 1.) Displacement vector A points due east and has a magnitude of 3.07 km. Displacement vector B points due north and has a magnitude of 7.56 km. Displacement vector C points due west and has a magnitude of 9.67 km. Displacement vector D points due south and has...
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    Find height of tree from shadow silhouette

    need help on physics problems 1)The silhouette of a Christmas tree is an isosceles triangle. The angle at the top of the triangle is 10.2 degrees, and the base measures 1.67 m across. How tall is the tree? 2) A person is standing at the edge of the water and looking out at the ocean (see...
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