What kind of energy is stored when you stretch a spring?

Which type of microscope would allow the viewer to see ribosomes inside a cell?

Simple machines can a. increase force only b. decrease force only c. increase or decrease force

The a992 steel rod bc has a diameter of 50 mm and is used as a strut to support the beam. determine the maximum intensity w of the uniform distributed load that can be applied to the beam without risk of causing the strut to buckle. take f.s. = 2 against bucklin