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A solid disk of mass m1 = 9.5 kg and radius R = 0.18 m is rotating with a constant angular velocity of ω = 39 rad/s. A thin rectangular rod with mass m2 = 3.3 kg and length L = 2R = 0.36 m begins at rest above the disk and is dropped on the disk where it begins to spin with the disk. 1.What is the initial angular momentum of the rod and disk system? 2.What is the initial rotational energy of the rod and disk system? 3.What is the final angular velocity of the disk? 4.What is the final angular momentum of the rod and disk system? 5.What is the final rotational energy of the rod and disk system? 6.The rod took t = 6.4 s to accelerate to its final angular speed with the disk. What average torque was exerted on the rod by the disk? Please answer thoroughly and I will rate 5 stars...
A compressed-air cylinder is known to fail if the pressue exceeds 100 atm. A cylinder that was filled to 20 atm at 22°C is stored in a warehouse. Unfortunately, the warehouse catches fire and the temperature reaches 900°C. What is the pressure ins..
A car is driven east for a distance of 49 km, then north for 23 km, and then in a direction 28° east of north for 28 km. FIND the magnitude (in km) of the car's total displacement from its starting point
A bird stands on a dc electric transmission line carrying 3300A (Figure 1) . The line has 2.7×10?5? resistance per meter, and the bird's feet are 3.5cm apart
Calculate the induced emf in the conductor and if the total resistance in the conductor is R what is the magnitude of the induced current.
What is the current through the 6 ohm resistor?
An 8.71-kg block slides with an initial speed of 1.62 m/s down a ramp inclined at an angle of 27.0° with the horizontal. find the distance the block slides before coming to rest
The three ropes are tied to a small, very light ring. Two of these ropes are anchored to walls at right angles with tensions T1 = 35 N andT2 = 70 N. What are the magnitude and direction of the tension Tvec3 in third rope.
Assume someone drops an apple from a vertical distance of 6.0 meters, directly above the point where the arrow hits the tree.
What is the difference between a vector's x scalar component, How do equilibrant and resultant vectors relate to each other
A particular guitar string is supposed to vibrate at 191- Hz, but it is measured to actually vibrate at 210- Hz. By what percent should the tension in string be changed to get the frequency to the correct value.
A 41 kg crate, starting from rest, is pulled across a floor with the constant horizontal force of 250 N. For the first 10m the floor is frictionless, and for the next 11.00 m the coefficient of friction is 0.17. What is the final speed of the crat..
The coefficient of static friction
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