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Rod AB has a mass of 3 kg and is attached at A to a 5-kg cart C. Knowing that the system is released from rest when θ = 30° and neglecting friction, use computational software to determine the velocity of the cart and the velocity of end B of the rod for values of θ from +30° to -90°. Determine the value of u for which the velocity of the cart to the left is maximum and the corresponding value of the velocity.
a duck has a mass of 3.0 kg. as the duck paddles a force of 0.06 n acts on it in a direction due east. in addition the
varying coefficient of friction a box is sliding with a speed of 4.50 ms on a horizontal surface when at point p. it
A horizontal conductor in a power line carries a current of5000 A from south to north. Earth'smagnetic field (60.0 µT) is directed toward the north and isinclined downward at 71° to the horizontal. Find the magnitude anddirection of the magnetic forc..
A linearly-polarized em wave moving in vacuum perpendicular to a perfectly reflecting surface exerts a radiation pressure of 0.0123 Pascal on that surface. Determine the intensity of that em wave
a 78 g ice cube at -18degc is placed in a lake whose temperature is 12degc. calculate the change in entropy of the
if a magnetic compass is placed between the plates of a fully charged capacitor, why wouldn't the compass will align itself along the electric field lines.. ... please explain in detail.
Automobile engine slows down from 4500 rpm to 1200 rpm in 2.5 s. compute (a) its angular acceleration, assumed constant and (b) total number of revolutions the engine makes in this time.
You stand at the center of a carousel spinning at rate w. You throw a ball horizontally with velocity. how long does it take for the ball to strike the floor? At a point where the ball as position r = (x,y,z), what is the centrifugal force on the bal..
A positive charge of Q = 4.60 uC is fixed in place. From a distance of ri = 4.60 cm a particle of mass m = 5.70 g, What is the minumum distance rf between the two charges
An electron is accelerated inside a parallel plate capacitor. The electron leaves the negative plate with a negligible initial velocity and then after the acceleration it hits the positive plate with a final velocity ?. The distance between the pl..
A force platform is a tool used to analyze the performance of athletes measuring the vertical force that the athlete exerts on the ground as a function of time. With what speed did she reach the platform
four identical particles each with mass m 10-6 kg and charge q 10-6 c are initially at the four corners of a square
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