Question

1) We have a spring that has a spring constant of 30.5 N / m. Determine what force must be applied to compress it about 5 centimeters.

2) Determine what is the period and frequency of a mass-spring system, which has a mass of 300 grams and an elastic constant of 30 N / m.

3) A spring mass system has a mass of 400 grams and oscillates at a frequency of 30 Hz. Determine the elastic constant of the spring.

4) Determine the resistance of a conductor 100 m long 0.2 mm in diameter whose resistivity is 0.0002 Ω ּ m

5) Determine the resistance of a conductor 100 m long 0.2 mm in diameter whose resistivity is 0.0002 Ω ּ m

6) What is the value of the electric charge that circulates through a conductor in 12 seconds if the current intensity is 0.25 A

7) How much current flows through a conductor when an electric charge equal to a Coulomb passes in 5 seconds. Data: Consider that the charge of an electron is 1.6 • 10-19 C or that 1 C equals the charge of 6.25 • 1018 electrons.

Answer 1