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A squirrel falls from a very tall tree. Initially at t= 0), the squirrel is at the top of the tree, a distance y 50 m above the ground. At t = 1.0 s, the squirrel is at y 45 m, and at t = 2.0 s, it is at y 30 m. Estimate the average velocity of the squirrel during the intervals from t= 0.0 s to t =1.0 s and from t= 1.0 s to t =2.0 s. Use these results to estimate the average acceleration of the squirrel during this time.
A parallel plate capacitor has a capacitance of 6.3 µF when filled with a dielectric. evaluate the dielectric constant of the dielectric
Three moles of an ideal monatomic gas are at a temperature of 377 K. compute the final temperature of the gas?
A wheel of radius 1.5m rotates at a constant angular velocity. A point at the edge of the wheel experiences centripetal acceleration of 1.2m/s^2. What is the linear speed of that point
A wire of diameter 0.65mm and length 6.0m stretches 10mm when 5.5kg is hung from it. what is the effective spring constant for the stretching wire
For all parts, assume that the "island" refers to the point at a distance D from the point at which the package is released. Ignore the height of this point above sea level. Assume that the acceleration due to gravity is g = 9.80m/s^2. What is the..
A block of mass M is at point A on the slope (the slope is just a %u201Cregular roller coaster ride %u201D, What is the velocity at the bottom of the slope at point B which is 5 meters below point A
A copper wire, whose cross-sectional area is 5.22 x 10-6 m2, has a linear density of 5.86 x 10-3 kg/m and is strung between two walls. At the ambient temperature, a transverse wave travels with a speed of 43.1 m/s on this wire. The coefficient of ..
You have a mass of 77 kg and are on a 43 degree slope hanging on to a cord with a breaking strength of 209 newtons. What must be the coefficient of static friction to 2 decimal places between you and the surface for you to be saved from the fire..
Beginning with expressions for the reactance of a capacitor and an inductor, derive an expression for the resonant frequency
A rocket cruising past earth at 0.800c shoots a bullet out the back door, opposite the rocket's motion, at 0.900c relative to the rocket. What is the bullet's speed relative to the earth
A 2.60kg box that is several hundred meters above the surface of the earth is suspended from the end of a short vertical rope of negligible mass, At what value of t does the box return to its initial position
Water flowing through a garden hose of diameter2.70cm fills a20.0-L bucket in1.30min. What is the speed of the water leaving the end of the hose
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