Amother pulls her two children on a sled through the snow along a flat street. how much work is done if she pulls her children 100 feet with a constant force of 40 pounds at an angle of 28°?

Melting and boiling are endothermic processes. this means that these processes absorb energy from their surroundings in order to occur. use this information and the data you collected in the phase change gizmo to describe what happens to the temperature of water when you boil it, then explain why this result occurs.

Which element is the least metallic between cadmium, silver, zinc, or iron?

What is the temperature of 0.750 mol of a gas stored in a 6,850 ml cylinder at 2.21 atm? . 2.95 k 5.24 k 138 k 246 k