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A centrifuge in a medical laboratory rotates at an angularspeed of 3450 rev/min. When switchedoff, it rotates through 54.0revolutions before coming to rest. Find the constant angularacceleration of the centrifuge.
A 10 g ball of clay traveling east at 1.5m/s collides and sticks together with a 30g ball of clay traveling north at 2.5m/s. What is the speed of the resulting ball of clay
Two tiny conducting spheres with a mass of 15gm each are hanging from non-conducting threads of length 70cm such that they are 4cm apart as shown to the left.
A car wheel with a moment of inertia of 7.85 kg.m^2 is accelerating from 2160 rpm to 5040 rpm in a time of 10.0s. calculate The work done in raising the rotation frequency
A vertical wall (6.3 m x 3.3 m) in a house faces due east. A uniform electric field has a magnitude of 150 N/C. What is the electric flux through the wall
An ideal refrigerator utilizes a Carnot cycle operating between 0 degree C and 26 degree C. How much energy must be supplied to the refrigerator
A baseball leaves the batter's bat at 30° above horizontal. With what speed does the ball leave the bat, What is the acceleration of the ball when it reaches maximum height
A torque of 60 Nm producing a counterclockwise rotation is applied to the wheel about its axle. A frictional torque of 10 nm acts at the axle.If the wheel is observed to accelerate at the rate of 2rad/s2 under the influence of these torques, what i..
Air that initially occupies 0.80 m3 at a gauge pressure of 140 kPa is expanded isothermally to a pressure of 101.3 kPa, Compute the work done by the air
In a women's 100-m race, accelerating uniformly, Laura takes 1.87 s and Healan 3.12 s to attain their maximum speeds, which they each maintain for the rest of the race.
An ideal transformer has 400 turns on its primary and 18 turns on its secondary. what is the power output
Tarzan has a mass of 75.0 kg and is swinging on a vine that is 8.00 meters long. What is the maximum speed at which he can swing
A certain transverse wave is described by y(x,t)=Bcos[2pi(x/L - t/T)], where B= 6.80mm , L= 30.0cm , and T= 3.30×10^-2s. Determine the wave's speed of propagation
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