Achild on roller skates pushes off against the wall with a force of 40n. how far must the child push themselves away from the wall (starting from rest), so that his final kinetic energy is 275j?

Why do electron microscopes have higher resolving power than light microscopes?

Rank the automobiles based on the magnitude of the force needed to stop them, from largest to smallest.2000 kg car going 5m/s500 kg car going 20 m/s1000 kg car going20m/s500 kg car going10m/s1000 kg car going10/s4000 kg car going 5m/s 0 0 603

What is the percent yield of titanium (iv0 oxide, if 10.2 are formed when 25.7g of titanium (iv0 chloride react?