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A bucket holding a cartoon character is dangling from a rope above a well from the windlass which raises the bucket from the well. The bucket and character have a combined mass of 10.0 kg. The distracted friend lets go of the handle, and the bucket falls, unwinding the windlass. The acceleration of the character and bucket is 4.9 m/s2. The windlass has a radius of 0.20 meters. What is the rotational inertia of the windlass?
A force F= (6x - 2y)N acts on a particle that undergoes a displacement delta r= (3x + y)m. find the work done by the force on the particle
An iron tower in is 340 meters tall on a cold day (=-8l4 degrees Celsius). What is the hight of the tower on a hot day whe the tempeture is 32.4 degrees Celsius
In an experiment, 300 g of aluminum (with a specific heat of 900 J/kg·K) at 100°C is mixed with 54.0 g of water (4186 J/kg·K) at 20°C, What is the entropy change of the aluminum-water system
A 75 kg skater, starts at 6m above the ground, potential energy =0 at 2m above the ground. Calcualte the percentage difference between the two speeds
A 0.14-kg pinecone falls 16 m to the ground, where it lands with a speed of 13 m/s. What was the average force of air resistance exerted on the pinecone
An unstable atomic nucleus of mass 1.92 10-26 kg initially at rest disintegrates into three particles. One of the particles, of mass 5.00 10-27 kg, Find the velocity of the third particle
A straight horizontal garden hose 22.0 m long with an interior diameter of 1.10 cm is used to deliver 20oC water at the rate of 0.470 liters/s.
Three 15.53-g Styrofoam balls of radius 2 cm are coated with carbon black to make them conducting and then are tied to 1.15-m-long threads and suspended freely from a common point
A volleyball is spiked so that it has an initial velocity of 16.5 m/s directed downward at an angle of 53.1 ° below the horizontal. determine the horizontal component of the ball's velocity
A diffraction grating with 1000 slits/cm is oriented parallel o the y-axis and its center is located on the x-axis at x = -5.00 m. At how many locations does constructive interference occur on the y-axis
Unpolarized light of intensity 1.1 W/m^2 is incident on a polarizer. what is the intensity of the light that leaves the analyzer
A vertical spring of spring constant 140N/m supports a mass of 80g. The mass oscillates in a tube of liquid. Estimate the damping constant b
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