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When struck by a club, a golf ball initially at rest gets a speed of 31 m/s. If the ball is in contact with the club for 1.17 milliseconds, evaluate what is the magnitude of the average acceleration (in m/s2)?
A thin, uniform, rectangular sign hangs vertically above the doorof a shop. The sign is hinged to a stationary horizontal rod alongits top edge. Calculate its angular speed immediately after the impact
A spaceship is moving toward earth at .6c. It fires arocket away from the earth at .4c relative to the spaceship. What is the velocity of the rocket relative to the earth
a 3 kg mass attached to a spring oscillates with a period of 0.5 seconds and amplitude of 1/4 meter. find the maximum speed of the mass
a red ball is thrown down with an initial speed of 1.3 ms from a height of 27.0 meters above the ground. then 0.5
The moment of inertia about the axis of rotation of the remainder of his body is constant and equal to 0.450kg?m2. If the skater's original angular speed is 0.450rev/s, What is his final angular speed
A permanent magnet is hung from a string ( balanced ) and pointed in an East - West orientation and released. Describe its motion
A charged oil droplet falls 5.0 mm in 20.0 s at terminal speed in the absence of an electric field. What are the mass and radius of the drop
If the hydrogen atoms undergoes a transition between these states, it emits a photon with a characteristic wavelength of 21 cm. What is the energy difference between the 2 states
A certain piece of metal weighs 1.68 N in air and 0.82 N when submerged in water. What is the mass density of the metal (in g/cm3)
A wheel is spinning at 20 rad/s. It undergoes an angular acceleration of 12rad/s 2 until it reaches an angular velocity of371 rad/s. Decides how long it took to spin up. Decides how many revolutions it made while spinning up.
A photon energy 500KeV undergoes Compton scattering from the proton that is initially at rest. (a) what is the recoil Kinetic energy of the proton in eV?
A 3.7-m-tall, 60-cm-diameter concrete column supports a 2.0×10^5 load. By how much is the column compressed
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