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A 1400kg car rolling on a horizontal surface has speed v = 76km/h when it strikes a horizontal coiled spring and is brought to rest in a distance of 2.5m . What is the spring constant of the spring?
k = ___________N/m
Two conductors are made of the same material and have the samelength. Conductor A is a solid wire of diameter 1.4 mm.Conductor B is a hollow tube of outside diameter 7.7 mm and inside diameter 6.7 mm. What is the resistance ratio RA/RB ,measured be..
A 1kg mass hangs from a cord wrapped around a solid disk pulley with a mass of 3kg and radius 25cm. Find the acceleration of the mass as it drops and the cord unwinds
What would be the radius of curvature of the cornea
Calculate the value of (x2) for the first excited state of a harmonic oscillator and find the eigenvalue of the operators
The model rocket is fired vertically from rest. It has a net acceleration of 17.5m/s2. After 1.5s, its fuel is exhausted and its only acceleration is that due to gravity. how high does the rocket travel
formula use in nuclear plant? what can i talk about with nuclear plant. i am doing a report about chernobyl disaster
A certain light truck can go around an unbanked curve having a radius of 166 m with a maximum speed of 34.1 m/s. With what maximum speed can it go around a curve
A non-uniform flask consists of a lower portion that is a circular cylinder 20 cm in radius and 20 cm high. The upper portion is also a circular cylinder, which is 2 cm in radius and 40 cm high.
a pair of eyeglasses is designed to allow a person with a far-point distance of 2.02m to read a road sign at a distance
A 4.00-kg mass is placed at (4.00, 3.00) m and a 6.00-kg mass is placed at (3.00, ?4.00) m. What is the moment of inertia of this system of masses about the x-axis
a large cruise ship of mass 6.80 x 107 kg has a speed of 12.8 ms at some instant. a what is the ships kinetic energy at
A 100 coil spring has a spring constant of 438 N/m. It is cut into two shorter springs, each of which has50 coils. One end of a 50-coil spring is attached to a wall. An object of mass 37 kg is attached to the other end of the spring, and the system i..
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