A spring gun with a spring constant of 250N/m is compressed 5.0cm. How fast will a 0.025kg dart move when it leaves the gun?

Why does the input force have to be greater than the force needed to lift the bale?

If it takes a planet 2.8 x 10^8 s to orbit a star with a mass of 6.2 x 10^30 kg what is the average distance between the planet and the star

Juan created a chart to him study for a test. which headings best complete the chart? x: transparent objects y: opaque objects x: opaque objects y: transparent objects x: high frequency waves y: low frequency waves x: low frequency waves y: high frequency waves