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Calculate the rotational kinetic energy of a sledgehammer being swung around its end at an angular speed of ω=2.901 rad/s. Model the sledgehammer as a long, thin rod with length L = 1.099 m and mass m = 1.320 kg, with a small, massive head with M = mass 5.79 kg on the end. You can model the small, massive head as a point particle, contributing ML2 to the moment of inertia. Express your answer in Joules.
A microscope has an objective lens with a focal length of 15.0 mm. A small object is placed 0.60mm beyond the focal point of the objective lens. What is the magnification of the real image
One component of a device for producing a beam of spin polarized protons for use in nuclear research is a spherical deflector. The ion source may be described in class. The deflector is composed of two sections of spheres that face each other as c..
A 110-g bullet is fired from a rifle having a barrel 0.594 m long. Choose the origin to be at the location where the bullet begins to move. Determine the work done by the gas on the bullet
Use the small-angle formulas = (θ ×d)/206,265 to answer the following question: What is the actual diameter in light-years of the Cat's Eye Nebula if its angular diameter (arcseconds) = 20 and its distance (light-years) = 3,300?
A cylinder of mass, M1= 6kg and radius R= 4 m is spinning about anaxis through its center at 7 rad/sec. What is the final angular velocity of the combination
The electrical supply is 130 V (rms) at 61.0 Hz; the lightbulb is rated as "130 V,1100 W." What value of Cmax is required if the rate of energy dissipation in the lightbulb is to be varied by a factor of 5 from its upper limit of 1100 W? Assume t..
One of James Bond's adversaries is standing on a frozen lake;there is no friction between his feet and the icewhat is themagnitude of his horizontal recoil velocity
When four people with a combined mass of 319 kg sit down in acar, they find that the car drops 2.5 cm lower on its springs. What is the frequency of the car's vibration
A 380 kg piano slides 3.9 m down a 27 incline and is kept from accelerating by a man who is pushing back on it parallel to the incline. Determine the work done by the man on the piano
An electron is fired with speed 2400 m/s into a region of uniform electric field with magnitude 8 N/C. how long will it take for the electron to come to a stop
A 0.145 kg baseball pitched at 39.0 m/s is hit on a horizontalline drive straight back toward the pitcher at 52.0 m/s. calculate the average force between the bat and ball during contest
The angular momentum of a flywheel having a rotational inertia of 0.250 kg·m2 concerning its central axis decreases from 2.40 to1.000 kg·m2/s in2.00 s. What is the magnitude of the average torque acting on the flywheel about its central axis through ..
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