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A car and its suspension system act like a mass-spring system with m= 1200kg and k= 58 kN/m. Its worn-out shock absorbers provide a damping constant b= 230 kg/s. The car hits a pothole that sets it oscillating. How many oscillations will it make before the oscillation amplitude drops to half of its initial value?
Tom and Mary are riding a merry-go-round. Tom is on a horse about half way between the center and the outer rim, Which child has the larger angular speed
What phase dissimilarity between two otherwise identical travelling waves, moving in the same direction along a stretched string, will result in the combined wave having amplitude 1.40 times that of the common amplitude of the two combining waves?
A solid block is suspended from a spring scale.When the block is in air the scale reads 35.9 N, when immersed inseawater the scale reads 30.3 N, What is the density of the block
A cannon shoots a rock from the ground at an angle of 31.0° above the horizontal. What is the rock's speed in the horizontal direction just before it hits the ground
The mass of the moon is 7.3*10^22 kg and its radius if 1785km. What is the strength of the gravitational field on the surface of the moon?
A long, current-carrying solenoid with an air core has 1550 turns per meter of length and a radius of 0.0230 m. What is the mutual inductance of this system
An archer pulls her bowstring back 0.400 mby exerting a force that increases uniformly from zero to260 N. What is the equivalent spring constant of the bow
When you take a bath, how many kilograms of hot water (51°C) should you mix with cold water (12°C) so that the temperature of the bath is36°C? The total mass of water (hot plus cold) is 189 kg. Ignore any heat flow among the water and its external su..
q1. shell fired from a cannon has a muzzle speed speed as it leaves the barrel of 800 fts. the barrel makes an angle
An object located at the origin and having mass M explodes into three pieces having masses M/4, M/3, and 5M/12. Obtain the velocity components of the third piece
A block of mass 2.50 kg is pushed 2.20 m along a frictionless horizontal table by a constant 20.0 N force directed 25.0° below the horizontal. Determine the work done by the net force on the block
Assume all temperatures to be exact, and neglect significant figures for small changes in dimension. What is the corresponding change on the Fahrenheit scale
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