Calculate the work done to stretch an elastic string by 40cm if a force of 10n produces an extension of 4cm in it?

How is acceleration calculated? a. initial velocity - final velocity / timeb. initial velocity + final velocity / timec. final velocity - initial velocity / timed. final velocity / timele select the best answer from the choices provided0oood00save and exitnextmark this and return

The image shows the positions of a car on a roller coaster track. arrange the cars in order based on their gravitational potential energy. begin with the lowest potential energy and end with the highest.

Which compound is held together by the electrostatic force between two ions? a. co2 b. cci4 c. h2s d. mgf2