Two ice skaters collide on the ice at 40 kg skater moving left at -6.5 m/s collides with a 52.5 kg skater moving right at 5 m/s The two skaters entangle and move together across the ice. Determine their post collision velocity. Help pls this is due tmrw

What is the order of the moon, earth, and sun in a lunar eclipse and a solar eclipse?

Which feature indicates that mars resides in the inner region of the solar system

Awater slide of length l has a vertical drop of h. abby's mass is m. an average friction force of magnitude f opposes her motion. she starts down the slide at initial speed vi. use work-energy ideas to develop an expression for her speed at the bottom of the slide. then evaluate your result using unit analysis and limiting case analysis. express your answer in terms of the variables h, m, l, vi, f and appropriate constants. vf v f