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Two different balls are rolled (without slipping) toward a common finish line. Their angular speeds are shown to the right. The first ball, which has a radius of 0.0613 m, is rolling along a conveyor belt which is moving at 1.19 m/s and starts out 9.02 meter from the finish line. The second ball has a radius of 0.0488 meter and is rolling along the stationary floor. If the second ball starts out 6.44 meter from the finish line, determine how long does each ball take to reach the finish line? Find what angular speed would the losing ball have needed to cross the finish line at the same time as the winning ball?
A positive charge +q1 is located to the left of a negative charge -q2. ON a line passing through the two charges, there are two places where the potential is zero. The first place is 4.00 cm to the left of the negative charge.
A block is at rest on a plank whose angle can be varied. The angle is gradually increased from 0 deg. find the kinetic coefficent of friction between the block and the plank
A 25-? resistance is connected in series with a 30-mH inductance and a 12-µF capacitor, obtain the power dissipated in the circuit
A concave makeup mirror is designed so that aperson 23 cm in front of it seesan upright image magnified by a factor of two. What is the radius of curvature of the mirror in meters?
A water-skier is being pulled by a tow rope attached to a boat. As the driver pushes the throttle forward, the skier accelerates, Determine the work done by the net external force acting on the skier
Only a small part of an iceberg protrudes above the water, whilethe bulk lies below the surface. The density of ice is 917 kg/m^3and that of seawater is 1025 kg/m^3. Find the percentage of theiceberg’s volume that lies below the surface.
A boat moves through the water with two forces acting on it. One is a 1800 N forward push by the water on the propeller, What will its velocity be at the end of that time
Two cars, A and B, travel in the same direction on a straight section of highway. A has a speed of 72.0 km/h, What is the speed of B relative to A
a car moving along a road with initial velocity v0 starts spending up with constant acceleration a0. relative tot he
Three charges, +q, +2q, and +4q, are linked by strings (Assume that the middle charge is fixed in space and the other 2 charges are held there by the tension alone.)
The buildup of plaque on the walls of an artery may decrease its diameter from 1.0cm to 0.85cm. Find the speed of blood flow within the plaque region
a uniform magnetic field of 1.5 t exists in a cylindrical region of radius10.0 cm its direction parallel to the axis
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