A spring elongates by 1.5 cm because of a force of 15 N. Therefore the spring constant should be O 1000.0 N/m O 10.0 N/m O 100.0 N/m O 10,000.0 N/m

A spring is pulled to 10 cm and held in place with a force of 500 N. What is the spring constant of the spring?

3. Your teacher gives you a pop-up toy that has a mass of 0.15 kg. When you push down on it, it sticks to the desk for a moment and then pops into the air. (a) If you push the toy down 2.0 cm to make it stick to the desk, and the spring constant is known to be 5000 N/m, how much EPE does the toy have at this moment? [E-S-A] (hint: displacement needs to be in meters for unit cancellation here). (b) Describe the cycle of energy conversions (choosing from EPE, GPE and KE) from the time the toy is stuck to the desk until it has jumped up to its maximum height. changes to which changes to (c) What is the maximum height the toy will be able to jump? [E-S-A round to the 0.01 m]

At an archery event, a woman draws the string of her bow horizontally back from 0 to 0.416 m with a force that increases steadily from 0 to 800 N. Assume the bowstring is a spring. What is the spring constant of the bowstring? O 980 N/m O 2,940 N/m O 1,410 N/m O 1,920 N/m O 2,230 N/m Comma nd