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One end of a cord is fixed and a small 0.500-kg object is attached to the other end, where it swings in a section of a vertical circle of radius 2.00 m. When Θ = 20.0 degrees, the speed of the object is 8.00 m/s. At this instant, discover
a) The tension in the string
b) Total acceleration
c) The tangential and radial components of acceleration
d) Is your answer changed if the object is swinging down toward its lowest point instead of swinging up? Why?
a. a 0.2-kg block rests over a vertical spring confined to a barrel. it compresses the spring from its original length
1. a calculate the efficiency of a carnot engine running between a low temperature of 27.0degc and a high temperature
The force on an object is given by F(x) = -2(x^2)(e^x), where F is in newtons, and x is in meters. What is the change in the object's potential energy
Assuming a mass density of 3.5 g/cm^3 for rock and 1 g/cm^3 for ice, calculate the radius of the rocky core for each of the galilean satellites with complete differentiation
A cometary nucleus rotates rapidly and has an albedo A=0.05. When its surface temperature reaches T?150K, How far is the cometary nucleus from the Sun
a tennis player hits a ball 2.0 rm m above the ground. the ball leaves his racquet with a speed of 22.0 ms at an angle
A carpenter is driving a nail into a board. The 1.25 kg hammer moves at 8.85 m/s when it strikes the nail. find the increase in temperature of the nail after 3 blows from the hammer
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A banked circular highway curve is designed for traffic moving at 75 km/h. The radius of the curve is 153 meter. Find minimum coefficient of friction between tires and road
An old covered bridge across a country stream weighs 89,200N. A large truck stalls 4m from one end of the 9.00-m bridge. What weight must each of the piers support
the work done in accelerating a flywheel from rest to an angular speed of 12.7 revolutions per second is 21.6 kj. what
A Ferris wheel starts at rest and builds up to a final angularspeed of 0.60 rad/s while rotating through an angular displacementof 3.9 rad. What is its average angular acceleration
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