Recent content by xshezsciencex

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    Energy Conservation: Velocity of Marbles 1, 2 and 3

    Three marbles have the same mass. Two of them touch each other and are aligned perpendicular to the path of marble 1. The velocity of marble 1 has magnitude v (initial)=10m/s and is directed at the contact point of marbles 2 and 3. After the elastic collision what are the speed and direction...
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    How Does Mass, Tension, and Acceleration Interact in Rotational Dynamics?

    A uniform sphericall shell of mass=4.5kg and radius= 8ck can rotate about a vertical axis on frictionless bearings. A massless cord passes around the equator of the shell, over a pulley of rotational inertia, I = 3.0 * 10^2 and radius = 5.0cm and is attached to a small object of mass = 0.60kg...
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    Coefficient of kinetic friction of car collision

    Two cars collide causing them to skid 17m at an angle of 30degrees north east before stopping. One car is 1180kg and the other is 1000kg. The coefficient of kinetic friction for a rubber tire slidin on pavement is 0.80 How would I determine the 1000kg cars' speed before the collision? My...
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    Find the maximum height of the ball after the collision

    A 0.300kg baseball has a velocity of magnitude 12.0m/s and angle 35 degrees. The ball collides with the bat with a velocity of 10m/s with a collision of 2.00millmeters/second. (a) What are the magnitude and directions (relative to the positive direction of the x axis) of the impulse on the...
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    Momentum & Kinetic Energy Conservation: 1kg Block & 2kg Block Collision

    A 1kg block is at rest on a horizontal frictionless surface touching the end of an unstretched spring of spring constant 200N/m. Tjhe other end of the spring is fixed to a wall. A 2kg block traveling at a speed v(initial)=4m/s collides with the 1kg block, and the two blocks stick together. I...
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    Calculating Potential Energy of a Spring: A Case Study in Newtonian Dynamics

    A certain spring exerts a restoring force F{sub x}(x)= -alpha x - beta x^2 if it is stretched or compressed, where alpha= 60N/m and beta=18N. The mass of the spring is negligible. How would I : (a) Find the potential energy function U(x) for the spring. Let U=0 when x=0. (b) An object with...
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    How Does Kick Dynamics Affect Soccer Ball Impulse and Force?

    A player kicks a soccer ball (0.45kg). The player's foot is in contact with the ball for 3.0 H 10^-3 s and the force F(t)=[(6.0 * 10^6)t - (2.0 * 10^9)t^2 ]N for 0<_t<_3.0*10^-3s where t is in seconds. Find the magnitude of (a) the impulse of the ball due to the kick, (b) the...
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