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A thin, cylindrical rod L = 20.6 cm long with a mass m = 1.20 kg has a ball of diameter d = 6.00 cm and mass M = 2.00 kg attached to one end. The arrangement is originally vertical and stationary, with the ball at the top as shown in the figure below. The combination is free to pivot about the bottom end of the rod after being given a slight nudge. (a) After the combination rotates through 90 degrees, what is its rotational kinetic energy? (J) (b) What is the angular speed of the rod and ball? (rad/s) (c) What is the linear speed of the center of mass of the ball? (m/s) (d) How does it compare with the speed had the ball fallen freely through the same distance of 23.6 cm? (%)
a stell ball of mass m suspended by a thread of lenght l. the ball is then released when the thread is horizontal. at the bottom of this path, find the speed of the block just after collision
A baseball is thrown upwards with a speed of 15.0 m/s. How long does it take the baseball to reach its maximum height
Suppose 1.15 mol of oxygen is heated at constant pressure of 0.75 atm from 13.0° C to 22.0° C. What is the work done by the gas during this expansion
Two charged particles with different speeds move one at a time through a region of uniform magnetic field. Find the ratio of the speeds
008 10.0 points A length of metal wire has a radius of 0.006 m and a resistance of 0.08 ?. calculate the density of free electron in the wire
At time t=0 a grinding wheel has an angular velocity of 28.0 rad/sec. It has the constant angular acceleration of 35.0 rad/sec^2 until a circuit breaker trips at time t=1.80. From then on, the wheel turns through an angle of 433 as it coasts to the s..
A knife thrower throws a knife toward a 300-g target that is sliding in her direction at a speed of 2.50 m/s on a horizontal frictionless surface. find the speed of the knife after passing through the target
The first player has an acceleration whose magnitude is 0.5 m/s^2 and the second player's has an acceleration of 0.3 m/s^2. Explain by how much time passes before hey collide?
An unknown mass is placed on one side of the Atwood's machine. The downward acceleration of the mass 5kg is observed to be exactly one-half of the acceleration due to gravity. determine the tension force and the unknown mass
A circular coil having 19 turns and a radius of R = 19.2cm carries a current of 3.30A. It is placed in a uniform magnetic field of 62.0mT. What is the magnitude of the torque acting on the coil
A 40.0 kg wagon is towed up a hill inclined at 18.5o with respect to the horizontal. What is the acceleration of the wagon
if turns ratio of primary to secondary coil of transformer is 1:3 and voltage on primary coil is 10 volts. what is voltage of seconday coil
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