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Starting from rest, the boy runs outward in the radialdirection from the center of the platform with a constantacceleration of 0.5 m/s2. If the platform is rotating ata constant rate θ=0.2 rad/s, determine the radial and transverse components of the velocity and acceleration of the boywhen t = 3 s. Neglect his size.
The answers in the back of the book are vr=1.50 m/s, vθ= 0.450 m/s, ar=.410 m/s2, and thenaθ= 0.600 m/s2.
A sailor is being rescued using a boatswain's chair that issuspended from a pulley that can roll freely on the support cableACB amd is pulled at a constant speed by cablle CD
The following boundary conditions apply at x=0, ca = Keqcao and T=To and at x=L, (dco/dx)=0 and (dT/dx)=0. Determine the concentration and temperature profiles for this system.
the two particles A and B start at the origin O and trevel in opposite directions along the circular path at constant speeds va =.7 m/s and vb =1.5 m/s . Determine the time when they collide and the magnitude
the maximum degree of curvature can be at most 6.0 and the superelevation can be at most +6.0%. Design the ramp for the highest horizontal curve design speed given the constraints.
Assume the rate constant for BOD decay is 0.2 d^-1, the mean velocity of the stream is 0.5 m s^-1, and the initial concentration is 100 mg L^-1 at x=0. Plot the resulting concentration with downstream distance x in km.
For an unknown alloy the stress at which plastic deformation begins is 400MPa and the modulus of elasticity is 120GPa. If the original specimen length is 76 mm, what is the max length to which it may be stretched without causing plastic deformatio..
A Kennedy half dollar has a mass of 1.150 X 10-2 Kg. The coins is a mixture of silver and cooper, and in water weights 0.1011 N. What is the mass of the silver
An investor bought a tax-free provincial bond, at a cost of $1000 which will pay $50 interest each year for 20 years. The bond will mature in 20 years and return the original $1000.
1 discuss the different agencies institutes centers and other national bodies that are involved in environmental work
The lubbock board of city development has decided to ask the city council to construct a tunnel under the snowcapped mountain range east to downtown lubbock so that out of town visitors can reach historic prairie dog town.
A pickup truck has a width of 78.7 in. Ifit is traveling north at 39 m/s through amagnetic field with vertical component of 32 µT, what magnitude emf is induced between the driver and passenger sides of the truck
the hypothetical velocity distribution in a horizontal rectangular open channel is v0.3y msnbspwhere v is the velocity
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