What is the centripetal acceleration of the hammer
An athlete whirls a(n) 7.16 kg hammer tied to the end of a(n) 1.2 m chain in a horizontal circle. The hammer moves at the rate of 1.47 rev/s..(a) What is the centripetal acceleration of the hammer?(b) What is the tension in the chain?
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A 15.0 g rubber bullet hits a wall with a speed of 120 m/s. If the bullet bounces straight back with a speed of 92 m/s, what is the change in momentum of the bullet?
A rocket, weighing 4.36 x 104 N, has an engine that provides an upward force of 8.90 x 105 N. It reaches a maximum speed of 860 m/s. What is the net force?
Jack is a second-grade student. He seems to have no interest in learning, often daydreaming in class and frequently disrupting the class by throwing objects at other students. Describe how a biopsychosocial approach might provide both an integrate
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From your present location, how much farther away from the loudspeaker would you have to move to reach this reduced decibel level?
In the following diagram there is a coefficient of friction, μ, of 0.15 between the 5.0 kg mass and the surface. Calculate the tension in the cable connecting the two masses and the resulting acceleration.
A hiker determines the length of a lake by listening for the echo of her shout reflected by a cliff at the far end of the lake. She hears the echo 1.44 s after shouting. Determine the length of the lake. Assume the speed of sound to be 340 m/s.
The weight of the rod is 50 N and there is no friction between the rod and the wall or the rod and the floor. Calculate the horizontal force F applied at the lower end of the wall so that the rod does not slip.
What is the maximum amount by which the wavelength of an incident photon could change when it undergoes Compton scattering from an atom or molecule with a 60.0 u mass? (1 u = 1.66 x 10-27 kg).
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