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A vibration sensor, used in testing a washing machine, consists of a cube of aluminum 1.50 cm on edge mounted on one end of a strip of spring steel (like a hacksaw blade) that lies in a vertical plane. The strip's mass is small compared with that of the cube, but the strip's length is large compared with the size of the cube. The other end of that strip is clamped to the frame of the washing machine that is not operating. A horizontal force of 1.45 N applied to the cube is required to hold it 2.95 cm away from its equilibrium position. If it is released, what is its frequency of vibration?
A nuclear power plant produces an average of 4.90 × 103 MW of power during a year of operation. Find the corresponding change in mass of reactor fuel
If the police car accelerates uniformly at 3.00m/s^2 and overtakes the speeder after accelerating for 9.00 s, illustrate what was the speeder's speed?
A plastic rod is charged to -20 nC by rubbing. How many electrons have been added or protons removed
a bathyshpere dives to a depth of 1000 m in the ocean. if the inside is maintained at one atmosphere, what is the net force acting on the round window
A 1.7 kg rolling hoop with a radius of 9 cm rolls without slipping. If the angular speed of the hoop is 2.46 rad/s , compute rotational kinetic energy of the rolling hoop
A thin, flexible metal plate attached at one end to the platform, can be used to measure mass. When the free end of the plate is pulled down and released, it vibrates in simple harmonic motion with a period that depends on the mass attached to the pl..
A neutron of initial kinetic energy (Eini) scatters elastically from a target nucleus which is initiallt at rest. Find the maximum and average fractional kinetic energy loss F=1-(Efinal/Einitial)
A pinhole camera takes a picture of a building 200 m tall. how far is the camera from the building
A typical human eye is nearly spherical and usually about 2.5 cm in diameter. Find the approximate size of each image (coin and friend) on her retina
A motorcycle accelerates uniformly from rest and reaches a linear speed of 22.0 m/s in a time of 9.0 s. What is the angular acceleration of each tire
A jet plane lands with a speed of 114 m/s and can accelerate at a maximum rate of ?4.20 m/s2 as it comes to rest. what is the minimum time needed before it can come to rest
A steel piano wire 1.35 m long has a cross- sectional area of 0.00751 cm2. When under a tension of 68.9 N, how much does it stretch
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