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A flywheel having constant angular acceleration requires 4.20 sec to rotate through 164 rad. Its angular velocity at the end of this time is 103 rad/s. Determine the angular velocity at the beginning of the 4.20 sec interval; the angular acceleration of the flywheel.
a 1200-kg truck moving at 20m/s to the right collides with a 1000-kg car moving at 25 m/s to the left immediately after the collision, what is the speed and direction of the car
a velocity selector is used in a mass spectrometer to produce a beam of charged particles with uniform velocity.suppose
two masses m1=2.0kg and m2=3.5kg are connected by a thin string running over a massless pulley. what is the acceleration of the masses
A block of wood has a mass of 3.70 kg and a density of 632 kg/m3. What mass of lead is needed if the lead is on top of the wood
The wave function of a standing wave on a string fixed at both ends is given by y(x,t)=0.02sin(0.3x)cos(25t), where y and x are in cm and t is in seconds. What is the wavelength of the standing wave
For tests using a ballistocardiograph, a patient lies on a horizontal platform that is supported on jets of air Because of the air jets, the friction impeding the horizontal motion of the platform is negligible. determine the recoil velocity
A 201 kg log is pulled up a ramp by means of a rope that is parallel to the surface of the ramp. The ramp is inclined at 30.0° with respect to the horizontal. The coefficient of kinetic friction between the log and the ramp is 0.860, and the log has ..
a what plate area is required if an air-filled parallel-plate capacitor with a plate separation of 2.5 mm is to have a
The coefficient of static friction between m1 and the horizontal surface is 0.60 while the coefficient of kinetic friction is 0.30. what will be the acceleration of the system
A 0.244 H inductor is connected to a capacitor and a 44.5 ? resistor along with a 37.2 Hz, 46.1 V generator. Find the voltage drop across the resistor at resonance
An airplane can be made invisible to radar by coating the plane with a thin layer of an antireflective material. How many dark fringes are observed when 600 nm light illuminates the slides from directly above
vertically polarized light with an intensity of 40 wm2 passes through a polarizer whose transmission axis is at an
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