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A 109-kg horizontal platform is a uniform disk of radius 1.61 m and can rotate about the vertical axis through its center. A 69.9-kg person stands on the platform at a distance of 1.07 m from the center and a 29.9-kg dog sits on the platform near the person, 1.43 m from the center. Find the moment of inertia of this system, consisting of the platform and its population, with respect to the axis
An unstable particle at rest breaks up into two fragments of unequal mass. The mass of the lighter fragment is 2.30 10-28 kg, what is the speed of the heavier fragment
If the balls are released from a height where the bottom of the basketball is at 0.781m above the ground, what is the absolute value of basketball's momentum just before it hits the ground.
A dog searching for a bone walks 3.00 m south, then 8.20 m at an angle 30.0° north of east, and finally 14.0 m west. Find out the dog's resultant displacement vector using graphical techniques.
Brakes cause a frictional force of 2.5 N to the left to stop a 0.975-kg toy car traveling on a level surface at 3.75 m/s to the right. Calculate how far the car will travel while the brakes are being applied before the car finally stops.
Two planes approach each other head-on. Each has a speed of 790km/h , How much time do the pilots have to take evasive action
Force F = (-1.0 N) + (1.0 N) acts on a particle with position vector r = (5.0 m) + (5.0 m). What is the torque on the particle about the origin
questionan elevator of mass 2268 kg rest at a level of 7.62 m above a base of elevator shaft. it is raised to 76.2 m
We have an RC circuit with a 1.0 mega Faraday capacitor, a 20 kilo-ohms resistor, amd a 9.0 volt battery. what is the voltage between the plates of the capacitor
A load of 50kg is applied to a lower end of a steel rod 80cm long and 0.6cm in diameter. How much will the rod stretch
First discuss how energy can be converted from one form to another, giving specific examples. Define what we mean
While preparing tea water in a mine shaft deep underground, you notice that water boils at 105 C. what is your depth below the surface
For a standard production car, the highest road-tested acceleration ever reported occurred in 1993, Calculate the magnitude of the car's acceleration
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