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An electric dipole consists of 1.30g spheres charged to +/-1.90nC at the ends of a 8.00cm -long massless rod. The dipole rotates on a frictionless pivot at its center. The dipole is held perpendicular to a uniform electric field with field strength 1040V/m , then released. What is the dipole's angular velocity at the instant it is aligned with the electric field?
Two blocks of masses m1 = 1.90 kg and m2 = 5.18 kg are each released from rest at a height of h = 5.15 m on a frictionless track, find the maximum height to which m1 rises after the collision
Turner's treadmill starts with a velocity of ?3.5 m/s and speeds up at regular intervals during a half-hour workout. What is the average acceleration of the treadmill during this period
A properly motivated kangaroo can jump over an object. what is the velocity of the kangaroo, just when it returns to the ground
A point charge of 6.1 µC is at the center of a cubical Gaussian surface 60 cm on an edge. What is the net electric flux through the surface
A 20 liter tank of helium is at a pressure of 190 kPa at a temperature of 0 C. What is the speed of the helium atoms in the tank at this new volume
A3.50-kg block starts from rest at the top of a 30.0° incline and slides a distance of1.90m down the incline in1.80s. Find the magnitude of the acceleration of the block
A runner approaching the start/finish line hears the bell signaling one lap to go. The bell emits a 352 Hz tone, How fast is she going
Suppose a hockey puck slides down a frictionless ramp with an acceleration of 4.00 m/s2. If the ramp has a length of 5.90 m, how long does it take the puck to reach the bottom
A person is standing on the edge of a disk of radius R rotating about its axis. the person walks to a postition of R/4. Is a coeficient of static friction of 0.7 enough to keep the person from slipping when they are at a position of r= R/4.
A block of ice of mass 100 g and at 00 C is dropped into 500 g of water at 800 C in a Styrofoam cup. describe the process of each heat loss or gain
q1. two speakers one straight behind the other are each generating a 547-hz sound wave. what is the smallest separation
Two hockey players strike a puck of mass 0.169 kg with their sticks simultaneously, exerting forces of 1.17 103 N, compute the instantaneous acceleration of the puck
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