Find the spring constant k for a spring if a force of 11.N stretches the spring 0.48.m. 20.01.N/m 18.73_N/m 20.84.N/m 22.92_N/m 23.87_N/m F. А. D. В. E. С. 21.82 N/m

1) A linear spring has a spring constant of 20 N/m. How far would it have to be stretched to have a potential energy of 0.10 J? a. 0.10 m b. 200 m c. 0.0050 m d. 20 m e. 2.0 m

21.A block is suspended from the ceiling by a long, thin strip of tungsten metal. The strip behaves as a spring. To produce a 0.25 m horizontal deflection of the block, a force of 6.5 N is required. Calculate the spring constant(k) for the tungsten strip. 6.3 N 0.25 m A) 0.038 N/m B) 1.2 N/m C) 1.6 N/m D) 13 N/m E) 26 N/m 22. Which one of the following statements conceming streamline flow is true? A) At any given point in the fluid, the velocity is constant in time. B) Streamline flow occurs when there are sharp obstacles in the path of a fast- moving fluid. C) Streamline flow is described by Pascal's principle. D) Streamline flow is described by Archimedes' principle. E) The velocity vectors are the same for all particles in the fluid.

A 0.20 kg mass on a horizontal spring is pulled back a certain distance and released. The maximum speed of the mass is measured to be 0.28 m/s. If, instead, a 0.40 kg mass were used in this same experiment, the maximum speed would beA. 0.14 m/s           B. 0.20 m/s       C. 0.28 m/s    D. 0.40 m/s      E. 0.56 m/s

36. A1.00 kg mass is attached to a massless spring. After a mass, M, is attached to the spring and it reaches equilibrium, the spring is stretched 12.0 from its free length. From this position, the mass is pulled down an additional 20.0 cm, and released. Assume no loss due to friction. The force constant of the spring is M O A. 1 N/m B. 12 N/m OC. 20 N/m D. 54 N/m O E. 75 N/m F. 82 N/m O C. 98 N/m Back Save & Continue earch 99+ DELL

If a spring is stretched twice as far, the energy stored in it_________ A. halves B. stays the same C. doubles D. quadruples

A spring with a spring constant of k=157N/m is initially compressed by a block a distance d=0.21m. The block is on horizontal surface with coefficient of kinetic friction yk static friction ys and has a mass of m=6kg B)Assuming the block is released from the initial position and begins to move to the right input an expression for the sum of the force in the x- direction in the configuration.

3. Inside most ball-point pens is a small spring that compresses as the pen is pressed against the paper. If a force of 0.1N compresses the pen’s spring a distance of 0.005 m, what is the force constant of the tiny spring? *       a. 15 N/m       b. 30 N/m       c. 20 N/m       d. 40 N/m       e. None of the above

An automobile having a mass of 1000 kg is driven into a brick wall in a safety test. The bumper behaves like a spring with constant 4.75  106 N/m and is compressed 2.70 cm as the car is brought to rest. What was the speed of the car before impact, assuming no energy is lost in the collision with the wall? m/s

What stiffness is required in a spring if it is to Launch a 12 kg Mass 30 m into the air after being compressed by 0.25 m