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Question: A shock absorber is designed to quickly damp out the oscillations that a car would otherwise make because it is suspended on springs. Part A Part complete Find the period of oscillation of a 1680-kg car that is suspended by springs that make an effective force constant of 6.15×104N/m. Express your answer to three significant figures and include appropriate units. 1.04 s Previous Answers Correct Part B Find the damping constant b that will reduce the amplitude of oscillations of this car by a factor of 6.00 within a time equal to half the period of oscillation. Express your answer to three significant figures in kg/s. nothing kgs
Water is pumped at 250 m^3/min from a lake into a tank 65.0 m above the lake. What power (in kW) must be delivered by the pump
A 515-? resistor, an uncharged 1.50-µF capacitor, and a battery with an emf of 6.45 V are connected in series. What is the RC time constant?
One end of a wire is attached to a ceiling, and a solid brass ball is tied to the lower end. What is the radius of the brass ball
Using Newton's law of attraction between two bodies, derive a formula for the gravity field as a function of distance x from the point over the center of mass of a spherical body at depth, d and of density, ρ.?
a tow truck is pulling a car out of a ditch by means of a steel cable y 2.0 x 1011 nm2 that is 8.87 m long and has a
A projectile is shot directly away from Earth's surface. Neglect the rotation of the Earth. What multiple of Earth's radius RE gives the radial distance (from the Earth's center) the projectile reaches if (a) its initial speed is 0.550 of the escape ..
Susan, driving north at 51mph, and Shawn, driving east at 55mph, are approaching an intersection. What is Shawn's speed relative to Susan's reference frame
Calculate the work done by a ven der Waals gas, with equation (3.14) as the equation of state, in expanding from a volume V1 to a volume V2 at constant pressure P.
Air traffic controllers use radar to keep track of the location of aircraft. The radar displays an aircraft's location in terms of the compass direction from the controller to the aircraft, Write down its position vector in rectangular coordinates
it took a force of 250 N to pull a crate weighing 765 N across the floor. the work done was 3500 J. how far was the crate moved
One side of a plane wall is maintained at 100 ºC, while the other side is exposed to a convection environment having T = 10 ºC and h = 10 W/m2 -ºC. The wall has k = 1.6 W/m-ºC and is 40 cm thick. Calculate the heat-transfer rate through the wall
A rescue plane spots a survivor 132 m directly below and releases an emergency kit. how far away from the survivor will it hit the ground
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