Using Hooke's law, Fspring=kΔx, find the elastic constant of a spring that stretches 2 cm. when a 4 Newton force is applied to it.

A) 1/2N/cm

B) 2N/cm

C) 4N/cm

D) 8N/cm

A motorist travels a distance of 406 km during a 7 hr period. What was the average speed in (a) km/hr and (b) m/sec?

Take the north direction as the positive y direction and east as positive x. The origin is still where the student starts biking. Let d⃗ N be the displacement vector corresponding to the first leg of the student's trip.

A meterstick is initially standing vertically on the floor. If the meterstick falls over, with what angular velocity will it hit the floor? Assume that the end in contact with the floor experiences no friction and slips freely.

the refractive index of light going from air to glass is 1.5, what will be the refractive index of light going from glass to air

A person riding north on a bike speeds up from 0m/s to 9m/s in 3 seconds. What is the acceleration of the bike

How do i write in standard form 20000 degrees celsius?

Explain how atmospheric carbon is incorporated into two oceanic sinks.

What are newtons laws?

The tsunami described in the passage produced a very erratic pattern of damage, with some areas seeing very large waves and nearby areas seeing only small waves. Which of the following is a possible explanation? A.

A transformer has a primary voltage of 480 volts and a secondary voltage of 120 volts. if the primary windings have 700 turns, how many turns are in the secondary windings? (voltage and number of turns are directly proportional.)