A child 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?

A 15 kg child experiences an acceleration of 0.25 m/s2 as she is pulled 1.7 m horizontally across the floor by her sister. what is the change in the child's kinetic energy?

What do the single electrons in nitrogen do for a triple bond?

A flashlight uses four batteries to power it. Which type of current flows inside the flashlight?

What are some examples of action and reaction force

Folded mountains form when two plates converge and?

What kind of change is salt dissolving in water

Which of these is the most effective way for manny to cool down after kickboxing? start static stretches to increase his flexibility walk around to lower his heart rate sit and catch his breath to avoid light-headedness run one to three miles to

One of the driving forces of plate motion is: A. volcanic eruptions along coastlines B. meteor impacts in the ocean basins C. convection currents in the mantle D. hot liquid magma in the inner core

Which element is required for the combustion of fossil fuels? nitrogen hydrogen oxygen carbon

When air pressure is lower what happens to a balloon filled with air