The length that a hanging spring stretches varies directly with the weight placed at the end of the spring. If a weight of 11lb stretches a certain spring 7in., how far will the spring stretch if the weight is increased to 44lb?

Approximately how much energy is contained in 1 g of matter? A. 3 * 1013 J B. 9 * 1013 J C. 3 * 1016 J D. 9 * 1016 J

For a home sound system, two small speakers are located 52 cm closer to the listener than the other. for what value of the fundamental frequency of audible sound will these speakers produce constructive interference at the listener?

What is the range of atomic numbers of elements that don't exist naturally on earth?

9. A bullet is moving at a speed of 367 m/s when it embeds into a lump of moist clay. The bullet penetrates for a distance of 0.0621 m. Determine the acceleration of the bullet while moving into the clay. (Assume a uniform acceleration.)

The electrical charge on an atom as a whole is A) negative. B) neutral. C) positive. D) dependent upon the atomic number. 25)

A karate expert breaks a stack of bricks with his bare hand. If the force applied is 520 newtons and the impact time is 5.0 * 10-4 seconds, what is the value of impulse?

Which best describes how heat energy moves within a system?

Biomaterials made with nanotechnology are currently used for organ repair, skin transplants, and cell growth. organ repair, quantum dots, and carriers. quantum dots, OLEDs, and carriers. cell growth, OLEDs, and skin transplants.

Green light has a lower frequency than blue light. Which color of light has a longer wavelength?

Our 12 V car battery does not appear to be functioning correctly, so we measure the voltage with a volt meter and find that the voltage on the battery is only 9V.