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After landing, a jetliner on a straight runway taxis to a stop at an average velocity of -34. km. If a plane takes 6.50s to come to rest, what is the planes initial velocity and acceleration?
Blocks sliding 1 A block with mass m = 17.0 kg rests on a frictionless table and is accelerated by a spring with spring constant k = 4304.0 N/m after being compressed a distance x1 = 0.576 m from the spring’s unstretched length. The floor is frict..
the position of an object moving in a straight line is given by x= 5+3.0t - 40t^2 -20t^3, where x is in meters and t in seconds. a)What is the position of the object at t=1,2,3 and 4 s
A 900 Kg truck is driving at 45 m/s when it hits a large soft object and becomes embedded with it. Find the amount of work the object does to bring the truck to a stop
115 g of glass beads, originally at a temperature of 75.0 oC, are added to 85.0 g of ethyl alcohol which is at a temperature of -50.0 oC. find the temperature of the mixture when thermal equilibrium is reached
a child is born after 39 weeks in its mothers womb. if the childs birth mass is 3.5kg, how much mass on average does the fetus gain each day in the womb
A weight lifter lifts a 360-N set of weights from ground level to a position over his head, a vertical distance of 2.05 m. How much work does the weight lifter do
Your team of test engineers is to release the parking brake so an 848.0-kg car will roll down a very long 6.1 percent grade in preparation for a crash test at the bottom of the incline. What is the terminal speed for the car rolling down this grade
An artificial satellite circling the Earth completes each orbit in 130 minutes. (The radius of the Earth is 6.38 106 m. Find the altitude of the satellite
A generator delivers an AC voltage of the form ?v = (64 V) sin (75?t) to a capacitor. The maximum current in the circuit is 1.50 A. Find the rms voltage of the generator
A proton travels with a speed of 3.00 106 m/s at an angle of 22.0° with the direction of a magnetic field of 0.730 T in the +y direction. What is the magnitude of the magnetic force on the proton
q1. a wheel 38 cm in diameter accelerates uniformly from 240 rpm to 360 rpm in 6.5 s. how far will a point on the edge
A particle of mass m in a three-dimensional harmonic oscillator of poterntial energy (m w^2 r^2)/2 has spectrum given by E=h bar w(2nr+l+3/2) where nr is the radial quantum number and l is the orbital angular momentum suppose the particle has charge ..
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