The work done in extending a string by 4 mm is 1.52 J. Calculate the elastic constants of the string​

What is the acceleration of a spaceship that is initially at rest and then speeds up to 220 m/s in 20 seconds

Which best describes how fluids change as they travel through different portions of the convection currents? they change to solids at the outer portion of the convection currents. they change to solids at the inner portion of the convection currents. they become more dense at the outer portion of the convection currents. they become more dense at the inner portion of the convection currents

If a simple machine reduces the strength of a force, what must be increased?