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
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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
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- 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 above10 cm long spring, with a spring constant of 27 N/m, is used to reload the ball in a pinball machine. The spring is compressed by 4.0 cm by a mechanism in the machine and then let go. a. Calculate the elastic potential energy stored in the spring A new spring is fitted into the machine. It only needs to be compressed by 3.0 cm to store the same amount of elastic potential energy as the previus spring. b. Calculate the spring constant of this new spring The owner of the game wants to double the potential energy stored in this new spring. c. Calculate the compression of the spring needed in order to achieve thisA 3.59 kg ball is held at rest exactly 3.7 meters in the air. Assume their is no spring in this problem. A. How much gravitational potential energy does the ball currently have? Joules B. How much kinetic energy does the ball currently have? Joules C. How much total mechanical energy does the ball have currently? Joules The ball is than allowed to fall to the ground. As the ball falls It gravitational potential energy gets converted into Kinetic Energy. The moment before hits the ground all of its energy is in the form of kinetic energy. D. How much G.P.E does the ball have the moment before it hits the ground? Joules E. How much kinetic energy does the ball have the moment before it hits the ground? Joules F. what is the ball's speed the instant before it hits the ground? m/s
- 4. A spring with an equilibrium length of 50.0 cm is holding a 4.00kg mass. The mass causes the spring to stretch to a length of 1.00 meter. What is the potential energy given to the spring?Find the spring constant k for a spring if a force of 11 N stretches the spring 0.48_m. 22.92.N/m 23.87 N/m F. А. 20.01.N/m 18.73 N/m 20.84 N/m D. В. Е. С. 21.82_N/m2. A gymnast with a mass of 60.0 kg is jumping on a trampoline. The effective spring constant of the trampoline is 2000. N/m. If the gymnast compresses the trampoline a distance of 0.45 m and reaches a height of 1.2 m above the surface of the trampoline, a) determine how much work the gymnast does during the jump. If the jump takes 0.50 s, b) determine the power output of the gymnast.