A student attaches a 1.5 kg mass to a spring. When the spring is released, the mass will fall. The student places a raw egg at a position 0.70 m below the starting point of the mass. What spring constant is needed so that the mass will fall, tap the egg without breaking it, and then bounce back up?

Wavelength,frequency,and energy are related.what happens to a wave as it’s wavelength gets shorter?

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

In a heat engine if 1000 j of heat enters the system the piston does 500 j of work, what is the final internal energy of the system if the initial energy was 2000 j? 1. write the equation 2.list out your known variables 3.plug the numbers into the equations 4.solve 5.write your solution statement that includes initial energy and final