Consider a steel guitar string of initial length L=1.00m and cross-sectional area A=0.500mm2. The Young's modulus of the steel is Y=2.0×1011N/m2. How far (ΔL) would such a string stretch under a tension of 1500 N?

We found the centripetal acceleration of the earth as it revolves around the sun. compute the centripetal acceleration of a point on the surface of the earth at the equator caused by the rotation of the earth about its axis. (enter the magnitude. the radius of the earth is 6,371 km.)

You've already seen the value of 9.8 in this lesson. what's this value called? what quantity does it represent?

Which of the following correctly describes what happens when an atomic bomb explodes? small pieces of fissionable material are joined and form a body with a mass greater than the critical mass, the relative number of neutrons escaping decreases, and a chain reaction and explosion result. large pieces of fissionable matter are brought together quickly and form a body with a mass smaller than the critical mass, the relative number of escaping neutrons increases, and a chain reaction and explosion result.