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A weightlifter's barbell consists of two identical spherical masses each by radius 0.17m and mass of 50 kg. The weights are linked by a 0.96-m steel rod with mass of 12kg. Discover the moment of inertia of the barbell during the axis at the center.
A parachutist descending at a speed of 13.4 m/s loses a shoe at an altitude of 54.2 m. Illustrate what is the velocity of the shoe just before it hits the ground? The acceleration of gravity is 9.81 m/s2.
An indestructible bullet, 2cm long, is fired straight through a board which is 10 cm thick. What is the total time the bullet is in contact with the board
Elaine went to her outside faucet to fill a 0.0189m^3 bucket with water to wash her car, How long does it take to fill the bucket completely
A series RCL circuit is comprised of a 3.00-mH inductor and a 5.00-µF capacitor. What is the resonant frequency of this circuit
Nearly all battery powered devices with multiple batteries have their batteries connected in series. Could there be any advantage to connecting batteries in parallel? Describe your response in 100 words or less.
A 120-V(RMS) space heater has two power settings: 750 W and 1500 W. What is the resistance of the lower power setting
A circus performer stretches a tightrope between two towers. He strikes one end of the rope and sends a wave along it toward the other tower. find the tension in the tightrope
The terminals of a 12-V battery are connected to parallel plates. What plate separation would produce an electric field between the plates of 1400 N/C
A catapult with a radial arm 4.19 m long accelerates a ball of mass 19.1 kg through a quarter circle. The ball leaves the apparatus at 41.6 m/s. Find the net torque exerted on the ball and arm
An electron has an initial, vertical velocity v0, y=.0001 c when it enters a uniform, horizontal electric field, E=0.5 x (x hat). how far will the electron be deflected
A typical lightbulb in your house is rated 200 W, which means that the bulb dissipates 200 W when connected to a DC voltage of 110 V. (a) What is the current through the lightbulb? (b) If the voltage is reduced to 55 V, what is the dissipated powe..
A small ball rolls off the roof edge of a building with a horizontal speed of 2.3 m/s. the ball hits the ground a distance of 15.8 m from the buildings base. Calculate the following: (neglect any air resistance and spin) A) the height of the building..
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