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A solid wood door 1.00 {m} wide and 2.00 {\m} high is hinged along one side and has a total mass of 44.0kg . Initially open and at rest, the door is struck at its center by a handful of sticky mud with mass 0.700kg , traveling perpendicular to the door at 14.0m/s just before impact. Part A Find the final angular speed of the door. Part B Does the mud make a significant contribution to the moment of inertia?
Three capacitors having capacitances of 8.1 uF , 9.0 uF , and 4.7 uF are connected in series across a 37-V. potential difference. What is the total energy stored in all three capacitors
Two narrow slits, illuminated by light consisting of two distinct wavelengths, produce two overlapping colored interference patterns on a distant screen. What is the ratio of the two wavelengths
A 90° elbow is used to direct water (? = 1000 kg/m3) flow at a rate of 25 kg/s in a horizontal pipe upward. The di-ameter of the entire elbow is 10 cm. The elbow discharges water into the atmosphere, and thus the pressure at the exit is the local ..
A cockroach with mass m runs counter clockwise around the rim of a lazy Susan (a circular dish mounted on a vertical axle) of radius R and rotational inertia I with frictionless bearings.
A car rounds a circle of radius 150 m going at 10.5 m/s, What's the car's acceleration if its speed is constant
A ground state hydrogen atom absorbs a photon of light having a wavelength of 93.06 nm. What is the final state of the hydrogen atom
A damped mass-spring system oscillates at 265 -Hz. The time constant of the system is 2.0 s. At t = 0, the amplitude of oscillation is 6.1 cm and the energy of the oscillating system is then 61.00 J.
The small piston of a hydraulic press has an area of 8.00 cm2. If the applied force is 25.0 N, find the area of the large piston to exert a pressing force of 3600 N
Three blocks are connected on the table as shown below. The coefficient of kinetic friction between the block of mass m2 and the table is 0.355. The objects have masses of m1 = 3.75 kg, m2 = 1.15 kg, and m3 = 1.90 kg, and the pulleys are frictionl..
A strong man is compressing a lightweight spring between two weights. One weight has a mass of 2.3 kg, the other a mass of 5.3 kg . He is holding the weights stationary, What is the speed of the heavier weight
The drum of the photocopying machine in the problem above has a length of 48 cm and a diameter of 9 cm. What is the total charge on the drum
freight car with mass of 25000 kg rolls down an inclined track through a vertical distance of 1.5 m. What percentage of the initial kinetic energy is lost
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