What is the restoring force of a spring with a spring constant of 4a and a stretched displacement of 3b?

Question

anonymous · Answer

1. -7ab 2. -7a/b. 3. -12ab. 4. -12a/b which one?

anonymous · Answer

$$F=-kx$$where x is the displacement, k the spring constant.  Inputting:$$F=-(4a)(3b)=-12ab$$

anonymous · Answer

oh okay thanks

anonymous · Answer

If the period of a pendulum is 2.0 seconds and the acceleration due to gravity is 9.8 meters/secondÆ, what is the length of the cord on the pendulum?

anonymous · Answer

1m , .67m, 1.3 m, or 3.5 m?

anonymous · Answer

What can we say about the way in which the components of polarized light oscillate with respect to the direction of propagation?

anonymous · Answer

1. the components oscillate parallel to the direction of propagation 2. the components oscillate perpendicular to the direction of propagation 3. the components at an angle of 45 with the direction of propagation or 4. the components oscillate in all directions with the direction of propagation

anonymous · Answer

Which one??