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A fan blade rotates with angular velocity given by ?z(t)= ? ? ? t2, where ? = 4.60rad/s and? = 0.795rad/s3
Part A Calculate the angular acceleration as a function of time.
Part B Calculate the instantaneous angular acceleration ?z at t0 = 2.8s.
Part C Calculate the average angular acceleration ?av?z for the time interval t=0 to t0 = 2.8s.
A chair of weight 74.0 N lies atop a horizontal floor; the floor is not frictionless. You push on the chair with a force of F = 47.0 N directed at an angle of 41.0^circ below the horizontal and the chair slides along floor.
This caused Goodly to borrow to meet its obligations, resulting in a drop in its stock price. Are the directors liable? Explain why or explain why not?
The altitude of a hang glider is increasing at a rate of 6.80 m/s. At the same time, the shadow of the glider moves along the ground at a speed of 15.5 m/s when the sun is directly overhead. Calculate the magnitude of the glider’s velocity.
What is the volume flow rate through the smaller pipe? answer in m^3/ second.
In a head-on collision, a car stops in 0.17s from a speed of 30m/s . The driver has a mass of 78kg, What force is applied to the driver by his seat belt during that fraction of a second
Question: For all generators: Eg = 1\"\"0°, χ1 = j0.25 For all transformers: χ1 = j0.75 [A] Write the Y and Z matrices. B] Write the model equation. [C] For each bus, find V, ρ and Q.
In each cycle of its operation, a refrigerator removes 8 J of heat from the inside of the refrigerator and releases 22 J of heat into the room. How much work per cycle is necessary to operate this refrigerator.
Your projectile launching system is partially jammed. It can only launch objects with an initial vertical velocity of 42.0 m/s, though the horizontal component of the velocity can vary.
A 150-kg (including all the contents) rocket has an engine that produces a constant vertical force (the thrust) of 1680 N, Find the acceleration of the rocket
The current-density magnitude in a certain circular wire is J = (3.10 × 1010 A/m4)r2, How much energy is converted to thermal energy in 2.00 h
An 8m, 200 N uniform ladder rests against a smooth wall. The coefficient of static friction between the ladder and the ground is 0.55, and ladder makes a 50.0° angle with the ground. How far up the ladder can an 800 N person climb before the ladde..
Without slowing down, she skis off the cliff and lands downhill at a point whose vertical distance is 3.50 m below the edge. Explain how fast is she going just before she lands?
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