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An electric ceiling fan is rotating about a fixed axis with an initial angular velocity magnitude of 0.210 rev/s . The magnitude of the angular acceleration is 0.881rev/s . Both the the angular velocity and angular accleration are directed clockwise. The electric ceiling fan blades form a circle of diameter 0.750m . A)Compute the fan's angular velocity magnitude after time 0.205 has passed. 0.391 rev/s B)Through how many revolutions has the blade turned in the time interval 0.205 s from Part A? 6.16x10^-2 C)What is the tangential speed of a point on the tip of the blade at time = 0.205 s? 0.920m/s D)What is the magnitude of the resultant acceleration of a point on the tip of the blade at time = 0.205s ?
A 58.0-kg projectile is fired at an angle of 30.0° above the horizontal with an initial speed of 1.38 102 m/s from the top of a cliff 156 m above level ground, What is the initial total mechanical energy of the projectile
A charge of +q is located at the origin, while an identical charge is located on the x axis at x = 0.53 m. Where should the third charge be located
For a real train the friction between the car and the track can be described by a friction coefficient, μ. Find out this coefficient assuming that the time it takes for the car to come to rest is 3 s.
An object is dropped from rest from a height of 3.9 107 m above the surface of the Earth. If there is no air resistance, what is its speed when it strikes the Earth
q1. a typical major league fastball is thrown at about 99 mph and with a spin rate of 103 rpm. if the distance between
Suppose two kids get on a 4 meter long teeter-totter. The one on the right creates a CW torque of 350 Newton-meters (Nm). Quite by coincidence, when the other kid sits at 1 meter from his end they balance perfectly. How much does second kid weigh.
A 64 Ω resistor is connected in parallel with a 115 Ω resistor. This parallel group is connected in series with a 20 Ω resistor. The total combination is connected across a 15V battery.(a) Find the current in the 115 Ω resistor.(b) Find the power ..
A 1.3 kg block is initially at rest on a horizontal frictionless surface when a horizontal force in the positive direction of an x axis is applied to the block. What is the maximum kinetic energy of the block between x = 0 and x = 2.0 m
A short time later, all of the charge has left the capacitor and the current flowing through the inductor has reached its maximum value. What is this current
At one instant, a mass (m = 2 kg) is at the location m and attached to one end of a spring with a spring constant ks = 60 N/m and a relaxed length L0 = 0.22 m. The origin is placed where the other end of the spring attaches to the ceiling.
The wavenumber of the incident radiating in a Raman spectrometer is 20487 cm-1. What is the wavenumber of the scattered Stokes radiation
You're carrying a 4 m long, 23 poles to a construction site when you decide to stop for a rest. You place one end of the pole on a fence post and hold other end of the pole 35 from its tip. How much force should you exert to keep the pole motionle..
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