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A solid wood doors 1 meter wide and 2 meter high is hinged along one side and has a total mass of 50 kilogram. Initially open and at rest, the door is struck at its center by handful of sticky mud with mass 0.600 kilogram, traveling perpendicular to the door at just before impact with speed 1 m/s.
a) Evaluate the final angular speed of the door?
b) Evaluate what the final kinetic energy of the system?
A long, narrow steel rod of length 2.5000 m at 25 C is oscillating as a pendulum about a horizontal axis through one end. what will be the fractional change in its period
A race car is moving with a velocity of 144 kilometers/hour. The driver applies the brakes, and the car comes to a halt in 12.0 seconds. What is the acceleration of the car after 12.0 seconds? A. -12 m/s^2 B. -3.3 m/s^2 C. 3.3 m/s^2 D. 10.3 m/s^2
A 117 V potential difference isapplied to a space heater that dissipates 500 W during operation. What is its resistance during operation
A deep-space vehicle moves away from the Earth with a speed of 0.735c. An astronaut on the vehicle measures a time interval of 3.05 s to rotate her body through 1.00 rev as she floats in the vehicle. What time interval is required for this rotation a..
A small ball of mass 50 g is suspended from a string of length 66-cm and whirled in a circle lying in the horizontal plane. If the string makes an angle of 21? with the vertical, find the centripetal force experienced by ball. The acceleration of ..
A ball moving at 5.10 m/s strikes a stationary ball of the same mass. Calculate the velocity of the second ball after collision
A muon formed high in Earth's atmosphere travels towards Earth at a speed v = 0.92c for a distance of4.2 km as gauged by an observer at rest by respect to Earth. It then decays into an electron, a neutrino, and an antineutrino (µ- e- + v +v).
An 8.70-kg block slides with an initial speed of 1.56m/s up a ramp inclined at an angle of 27.4 degrees with the horizontal. The coefficient of kinetic friction between the block and the ramp is 0.62. Use energy conservation to find the distance the ..
A mass-spring system has k = 55.2N/m and m = 0.405kg. Find the frequency of its simple harmonic motion
A series RCL circuit driven at angular frequency w = 780 rad/s has a capacitive reactance XC = 920 ohms, What is the average power consumption of the circuit
Consider a perfectlyelastic collision between two objects of equal mass. What are the final velocities after the collision
A colonial gunner sets up his 225-kg cannon at the edge of the flat top of a high tower. It shoots a 4.5-kg cannonball horizontally. The ball hits the ground 215 m from the base of the tower. The cannon also move on frictionless wheels, and falls off..
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