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A flat uniform circular disk (radius = 4.91 meter, mass = 400 kilogram) is initially stationary. The disk is free to rotate in the horizontal plane about a frictionless axis perpendicular to the center of the disk. A 56.0 kilogram man, standing 1.21 meter from the axis, begins to run on the disk in a circular path and has a tangential speed of 2.20 m/s relative to the ground. Obtain the resulting angular speed of the disk.
(in rad/s)
Measurements of the radioactivity of a certain isotope tell you that the decay rate decreases from 8305decays per minute to 3080 decays per minute over a period of 5.00 days
A projectile is fired with an initial speed of 65.2 m/s at an angle of 34.5 degrees above the horizontal on a long flat firing range. determine the maximum height reached by the projectile
A positron and an electron each of mass 9.1 x 10-31kg are in the same general vicinity and have very small initialspeeds. They then annihilate each other producting two photons
there are two balls located in deep space as shown in the figure. the black ball has mass 36kg and the red ball has
When its coil rotates at a frequency of 230 Hz, a certain generatorhas a peak emf of 86 V. (a) What is the peak emfof the generator when its coil rotates at a frequency of 34 Hz?(b) Determine the frequency of the coil's rotation when the peak emf of ..
A 2.0 m-long cylindrical steel wire with a cross-sectional diameter of 4.0 mm is placed over a light, frictionless pulley, with one end of the wire connected to a 5.0 kg object and the other end connected to a 3.0 kg object. By how much does the w..
A block of mass 2.50 kg is pushed 2.80 m along a frictionless horizontal table by a constant 14.0 N force directed 25.0° below the horizontal, Determine the work done by the applied force
A ten pound car wheel has a moment of inertia of 0.38 kg m2. What is the wheel's rotational kinetic energy
An Atwood Machine consists of two blocks m1= 15 kg and m2= 23 kg connected by a masslessstring, What is the normal force on the pin supporting the pulley
this question requires a numeric or algebraic answer. in order to receive full credit for this problem you must show
The temperature of a gold bar rises by 10.0°C when it absorbs 0.677 kJ of energy by heat. The mass of the bar is 525 g. Determine the specific heat of gold from these data
a rod 14.0 cm long is uniformly charged and has a total charge of 222.0 mc. determine a the magnitude and b the
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