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A toy train is pushed forward and released at x0=2.0 m with a speed of 2.0 m/s. It rolls at a steady speed for 2.0 s, then one wheel begins to stick. The train comes to a stop 6.0 m from the point at which it was released.
a) What is the magnitude of the train's acceleration after its wheel begins to stick?
The boom in the crane is free to pivot about point P and is supported by the cable that joins halfway along its 18 m length. the cable passes over a pulley and is anchored at the back of crane. the boom has a mass of 1700 kg, distributed evenly an..
A street lamp weighs 152N. It is supported equally by two wires that form the angle of 120° with each other. What is the tension of each of these wires.
a block of mass m=0.2kg , in simple harmonic motion, has an amplitude of 3.5cm and a maximum speed of 70 cm/s. What is the angular frequency for the oscillation in rad/s?
Considering the equation for heat transfer through a wall, describe two simple ways to modify ahome to decrease the rate at which heat is lost through the walls.
An athlete on a trampoline leaps straight up into the air with an initial speed of 5.1 m/s, find the speed of the athlete when she is halfway up to her maximum height
An assistant standing on the level ground 150 m downrange from the launch point throws an apple straight up with the minimum initial speed necessary to meet the path of the arrow. Elucidate the initial speed of the apple?
Cars A and B are traveling around the circular race track. At the instant shown, A has a speed of 78ft/s, Determine the relative acceleration of car A with respect to car B at this instant
A miniblack hole formed as a superadvanced civilization decides to punish you (unfairly) by squeezing you until you become so small that you disappear inside your own event horizon. (Assume that your mass is 50).
A 6.0-kg block is at rest on a horizontal floor. If you push horizontally on the 6.0-kg block with a force of 24.0 N, it just starts to move. What is the coefficient of static friction
Under favourable circumstances the human eye can detect 1.0e-18 J of electromagnetic energy. How many 600-nm photons does this represent.
What force does a 55 kg passenger exert on the seat when she is at the top of the Ferris wheel.
A guitar string is 90.0 cm long and has a mass of 3.27g . From the bridge to the support post (=?) is 60.0 cm and the string is under a tension of 514 N
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