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A ceiling fan with 60 centimeter diameter blades is turning at 65 rpm. Assume the fan coasts to a stop 22 seconds after being turned off.
a) Obtain the speed of the tip of the blade 14 seconds after the fan is turned off?
b) Find through how many revolutions does the fan turn while stopping?
an astronaut is rotated in a horizontal centrifuge at a radius of 5.0 m.a what is the astronauts speed if the
Consider the chemical reaction given. The initial concentrations of CO(g) and H2O(g) 0.35 M and 0.40 M respectively, What is the value of the equilibrium constant for this reaction
Using the above equation, compute the emf, Eo, induced in the 2000-turn detector coil when a sine wave of frequency 1 kHz and amplitude Vo = 10 V is applied to the field coil and the area of the detector coil is 5.67 X 10 ^ (-4) m2.
A Girl is pushing on a 45 kg dresser with 300 N of force. The dresser has a coeficient of statice friction of 0.83, How much is the force of friction on the dresser
The angular acceleration of a wheel is ? = 5.0t4 – 3.0t2, with ? in radians per second-squared and t in seconds. At time t = 0, the wheel has an angular velocity of +7.0 rad/s and an angular position of +4.0 rad. Write expressions for (a) the angular..
Two capacitors (C1 = 7.9 uF, C2 = 15.7 uF) are charged individually to (V1 = 15.7 V, V2 = 4.5 V). Calculate the final potential difference across the plates of the capacitors once they are connected
A 5-kg mass moves under the influence of a force F=(2e^t ?)N, where t is time. What is the particle's position as a function of time
in an electrically heated home the temperature of the ground in contact with a concrete basement wall is 12.0 oc. the
A 17.0-g piece of Styrofoam carries a net charge of -0.75 µC and is suspended in equilibrium above the center of a large, compute the charge per unit area on the plastic sheet
What does halving the frequency of a wave do to the other properties of a wave, like speed, amplitude, wavelength, period, etc.) Describe what happens to the wavelength, frequency, and spped of a wave as it moves from glass to air.
How many atoms are there in a cubic centimeter of a solid and what is the velocity of the motorist relative to the police car and what is the velocity of the police car relative to the motorist?
A hydrogen atom is moving at a speed of 125.0 m/s. It absorbs a photon of wavelength 97 nm that is moving in the opposite direction. By how much does the speed of the atom change
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